Task: Answer the MCQ question.
Question: Which drug has a 2.829% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) Cc1ccc(-n2ncc3c(SCc4cccc(C)c4)ncnc32)cc1
(b) CCCCC1C(=O)NC(=S)NC1=O
Answer: b. CCCCC1C(=O)NC(=S)NC1=O
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCCC1C(=O)NC(=S)NC1=O
CCCCC1C(=O)NC(=S)NC1=O
5-butyl-2-sulfanylidene-1,3-diazinane-4,6-dione