Task: Answer the multiple-choice question.
Query: Which compound has a 18.153\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a) Cn1cccc1-c1nc2ccc([N+](=O)[O-])cc2[nH]1
b) O=C(c1cc(-c2ccccc2)nc2ccccc12)N1CCCC1
c) c1ccc(-c2nc3c([nH]2)CCc2nonc2-3)cc1
d) CC(C)N(C(=O)Cn1c(-c2ccccc2Cl)nc2ccccc21)c1ccccc1
Answer: a. Cn1cccc1-c1nc2ccc([N+](=O)[O-])cc2[nH]1
{#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#}
Cn1cccc1-c1nc2ccc([N+](=O)[O-])cc2[nH]1
Cn1cccc1-c1nc2ccc([N+](=O)[O-])cc2[nH]1
2-(1-methylpyrrol-2-yl)-6-nitro-1H-benzimidazole