Task: Answer the MCQ question.
Query: Which drug exhibits a 2.251\% 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=c1[nH]c(=O)n(-c2cccc3ccccc23)c(O)c1/C=N/N1CCCCCC1
(b) COc1ccc(N(CC(=O)Nc2cccc(N(C)S(C)(=O)=O)c2)S(C)(=O)=O)cc1OC
(c) Nc1ccccc1Sc1ccccc1[N+](=O)[O-]
Answer: c. Nc1ccccc1Sc1ccccc1[N+](=O)[O-]
{#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#}
Nc1ccccc1Sc1ccccc1[N+](=O)[O-]
Nc1ccccc1Sc1ccccc1[N+](=O)[O-]
2-(2-nitrophenyl)sulfanylaniline