Task: Answer the MCQ question.
Question: Which compound has a 5.390\% 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: O=[N+]([O-])c1ccc(-c2nc3ccc([N+](=O)[O-])cc3[nH]2)cc1
b: CC(=O)c1ccc(OCC(=O)NCC(c2ccco2)N2CCCCC2)cc1
c: COc1ccc(-c2cc(C(F)F)n3ncc(C(=O)NCCCN4CCCC4=O)c3n2)cc1
Answer: a. O=[N+]([O-])c1ccc(-c2nc3ccc([N+](=O)[O-])cc3[nH]2)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#}
O=[N+]([O-])c1ccc(-c2nc3ccc([N+](=O)[O-])cc3[nH]2)cc1
O=[N+]([O-])c1ccc(-c2nc3ccc([N+](=O)[O-])cc3[nH]2)cc1
6-nitro-2-(4-nitrophenyl)-1H-benzimidazole