Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 7.896\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) O=C(Cc1nc2ccccc2[nH]1)c1ccc([N+](=O)[O-])cc1
b.) CN1CCN(C(=O)c2ccc3c(c2)NC(=O)C(C)(C)O3)CC1
Answer: a. O=C(Cc1nc2ccccc2[nH]1)c1ccc([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#}
2-(1H-benzimidazol-2-yl)-1-(4-nitrophenyl)ethanone