Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 21.555\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) COc1ccc(NS(=O)(=O)c2cc([N+](=O)[O-])ccc2N/N=C\c2c(C)[nH]c3ccccc23)cc1
b.) O=C(N/N=C/c1cc([N+](=O)[O-])ccc1O)Nc1ccccc1
Answer: a. COc1ccc(NS(=O)(=O)c2cc([N+](=O)[O-])ccc2N/N=C\c2c(C)[nH]c3ccccc23)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#}
N-(4-methoxyphenyl)-2-[(2Z)-2-[(2-methyl-1H-indol-3-yl)methylidene]hydrazinyl]-5-nitrobenzenesulfonamide