Task: Answer the MCQ question.
Query: Which drug exhibits a 13.954\% 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 Cc1cccc(NC(c2ccc(C)s2)c2ccc3ccc(C)nc3c2O)n1
b CCOC(=O)c1[nH]c(C)c(C(=O)N2CCN(C(=O)c3ccco3)CC2)c1C
c COc1ccc(NS(=O)(=O)c2cc(NC(=O)[C@@H](NC(N)=O)C(C)C)ccc2C)cc1
d Brc1ccc(-c2nnc3ccc(N4CCN(c5ccccc5)CC4)nn23)cc1
Answer: b. CCOC(=O)c1[nH]c(C)c(C(=O)N2CCN(C(=O)c3ccco3)CC2)c1C
{#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#}
CCOC(=O)c1[nH]c(C)c(C(=O)N2CCN(C(=O)c3ccco3)CC2)c1C
CCOC(=O)c1[nH]c(C)c(C(=O)N2CCN(C(=O)c3ccco3)CC2)c1C
ethyl 4-[4-(furan-2-carbonyl)piperazine-1-carbonyl]-3,5-dimethyl-1H-pyrrole-2-carboxylate