Task: Answer the MCQ question.
Query: Which compound exhibits a 5.669% 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. CCOC(=O)c1c(C=O)c2sc(C)cc2n1C
b. Cc1c(NC(=O)COC(=O)/C=C/c2cccc(Cl)c2)c(=O)n(-c2ccccc2)n1C
c. COc1c(Cl)cc(Cl)cc1CNc1ccc(S(N)(=O)=O)cc1
d. Nc1ccccc1Sc1ccccc1[N+](=O)[O-]
Answer: a. CCOC(=O)c1c(C=O)c2sc(C)cc2n1C
{#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#}
CCOC(=O)c1c(C=O)c2sc(C)cc2n1C
CCOC(=O)c1c(C=O)c2sc(C)cc2n1C
ethyl 6-formyl-2,4-dimethylthieno[3,2-b]pyrrole-5-carboxylate