Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 0.157% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: Cn1cc([N+](=O)[O-])cc1-c1nc2ccccc2n1C
b: CCc1cccc(OCCCCNCCOC)c1
c: Nc1nc(-c2ccco2)nn1C(=O)c1cccnc1
Answer: a. Cn1cc([N+](=O)[O-])cc1-c1nc2ccccc2n1C
{#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#}
Cn1cc([N+](=O)[O-])cc1-c1nc2ccccc2n1C
Cn1cc([N+](=O)[O-])cc1-c1nc2ccccc2n1C
1-methyl-2-(1-methyl-4-nitropyrrol-2-yl)benzimidazole