Task: Answer the multiple-choice question.
Query: Which compound exhibits a 14.020\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CCS(=O)(=O)N1CCN(c2cc3c(cc2[N+](=O)[O-])n(C)c(=O)n3C)CC1
b: CCOC(=O)Nc1c(Cl)n(C)c(=O)n(C)c1=O
Answer: a. CCS(=O)(=O)N1CCN(c2cc3c(cc2[N+](=O)[O-])n(C)c(=O)n3C)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#}
CCS(=O)(=O)N1CCN(c2cc3c(cc2[N+](=O)[O-])n(C)c(=O)n3C)CC1
CCS(=O)(=O)N1CCN(c2cc3c(cc2[N+](=O)[O-])n(C)c(=O)n3C)CC1
5-(4-ethylsulfonylpiperazin-1-yl)-1,3-dimethyl-6-nitrobenzimidazol-2-one