Problem statement: Answer the MCQ question.
Question: Which drug has a 13.864\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: CCOC(=O)/C=C/C(=O)OCC(=O)Nc1ccc([N+](=O)[O-])cc1
b: CN(C(=O)c1ccc(NC(=O)C2CC=CCC2C(=O)O)cc1)c1ccccc1
c: COC(=O)CCC(=O)Nc1cc(Cl)cc(Cl)c1
Answer: a. CCOC(=O)/C=C/C(=O)OCC(=O)Nc1ccc([N+](=O)[O-])cc1
{#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#}
1-O-ethyl 4-O-[2-(4-nitroanilino)-2-oxoethyl] (E)-but-2-enedioate