Task: Answer the MCQ question.
Question: Which compound exhibits a -1.003\% human ether-à-go-go related gene (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: O=C(OCc1ccc(Cl)c(Cl)c1)c1ccc[nH]1
b: O=C1CCCCCN1Cc1nnc(SCc2nc3ccccc3s2)n1-c1ccccn1
c: S=C1NC2(CCCC2)N=C1c1ccccc1
d: Cc1ccc(C)c(NS(=O)(=O)c2c(C)ccc3nsnc23)c1
Answer: a. O=C(OCc1ccc(Cl)c(Cl)c1)c1ccc[nH]1
{#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#}
O=C(OCc1ccc(Cl)c(Cl)c1)c1ccc[nH]1
O=C(OCc1ccc(Cl)c(Cl)c1)c1ccc[nH]1
(3,4-dichlorophenyl)methyl1H-pyrrole-2-carboxylate