Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 17.139\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: CCCCn1c(N)c(N(Cc2ccccc2OC)C(=O)CC2OC(=O)c3ccccc32)c(=O)[nH]c1=O
b: CN(C(=O)c1ccc(Br)o1)C1(C)CCS(=O)(=O)C1
c: COc1ccc(S(=O)(=O)N2CCN(C(=O)c3ccc([N+](=O)[O-])o3)CC2)cc1
d: C=CCN1C(=O)c2ccc(C(=O)N3CCN(S(=O)(=O)c4cccc(F)c4)CC3)cc2C1=O
Answer: b. CN(C(=O)c1ccc(Br)o1)C1(C)CCS(=O)(=O)C1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__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_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CN(C(=O)c1ccc(Br)o1)C1(C)CCS(=O)(=O)C1
CN(C(=O)c1ccc(Br)o1)C1(C)CCS(=O)(=O)C1
5-bromo-N-methyl-N-(3-methyl-1,1-dioxothiolan-3-yl)furan-2-carboxamide