Task: Answer the MCQ question.
Query: Which compound exhibits a 13.313% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: CCCCSCc1nc2ccccn2c1Br
b: CCCn1nc(C(=O)OCn2nnc3ccccc3c2=O)c2ccccc2c1=O
c: COCCCN1C(=O)C(=O)/C(=C(/O)c2ccc(OC(C)C)cc2)C1c1cccnc1
d: COc1ccc(/C=N/NC(=O)c2nc(-c3ccccc3)n(-c3ccccc3)n2)cc1OC
Answer: a. CCCCSCc1nc2ccccn2c1Br
{#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#}
CCCCSCc1nc2ccccn2c1Br
CCCCSCc1nc2ccccn2c1Br
3-bromo-2-(butylsulfanylmethyl)imidazo[1,2-a]pyridine