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Let's see how good your language of choice is at selective randomness.

Given 4 characters, A, B, C, and D, or a string of 4 characters ABCD as input, output one of the characters with the following probabilities:

• A should have a 1/8 (12.5%) chance to be chosen
• B should have a 3/8 (37.5%) chance to be chosen
• C should have a 2/8 (25%) chance to be chosen
• D should have a 2/8 (25%) chance to be chosen

This is in-line with the following Plinko machine layout:

   ^
  ^ ^
 ^ ^ ^
A B \ /
     ^
    C D

Your answer must make a genuine attempt at respecting the probabilities described. A proper explanation of how probabilities are computed in your answer (and why they respect the specs, disregarding pseudo-randomness and big numbers problems) is sufficient.

##Scoring

This is code-golf so fewest bytes in each language wins!

Let's see how good your language of choice is at selective randomness.

Given 4 characters, A, B, C, and D, or a string of 4 characters ABCD as input, output one of the characters with the following probabilities:

• A should have a 1/8 (12.5%) chance to be chosen
• B should have a 3/8 (37.5%) chance to be chosen
• C should have a 2/8 (25%) chance to be chosen
• D should have a 2/8 (25%) chance to be chosen

This is in-line with the following Plinko machine layout:

   ^
  ^ ^
 ^ ^ ^
A B \ /
     ^
    C D

Your answer must make a genuine attempt at respecting the probabilities described. A proper explanation of how probabilities are computed in your answer (and why they respect the specs, disregarding pseudo-randomness and big numbers problems) is sufficient.

Scoring

This is code-golf so fewest bytes in each language wins!

Let's see how good your language of choice is at selective randomness.

Given 4 characters, A, B, C, and D, or a string of 4 characters ABCD as input, output one of the characters with the following probabilities:

• A should have a 1/8 (12.5%) chance to be chosen
• B should have a 3/8 (37.5%) chance to be chosen
• C should have a 2/8 (25%) chance to be chosen
• D should have a 2/8 (25%) chance to be chosen

This is in-line with the following Plinko machine layout:

   ^
  ^ ^
 ^ ^ ^
A B \ /
     ^
    C D

Your answer must make a genuine attempt at respecting the probabilities described. A proper explanation of how probabilities are computed in your answer (and why they respect the specs, disregarding pseudo-randomness and big numbers problems) is sufficient.

##Scoring

This is code-golf so fewest bytes in each language wins!

Let's see how good your language of choice is at selective randomness.

Given 4 characters, A, B, C, and D, or a string of 4 characters ABCD as input, output one of the characters with the following probabilities:

• A should have a 1/8 (12.5%) chance to be chosen
• B should have a 3/8 (37.5%) chance to be chosen
• C should have a 2/8 (25%) chance to be chosen
• D should have a 2/8 (25%) chance to be chosen

This is in-line with the following Plinko machine layout:

   ^
  ^ ^
 ^ ^ ^
A B \ /
     ^
    C D

Your answer must make a genuine attempt at respecting the probabilities described. A proper explanation of how probabilities are computed in your answer (and why they respect the specs, disregarding pseudo-randomness and big numbers problems) is sufficient.

##Scoring

This is code-golf so fewest bytes in each language wins!