Task: Answer the multiple-choice question.
Question: Which compound exhibits a 18.718% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] CC(=O)NC/C(C)=N\Nc1ccc([N+](=O)[O-])cc1
[b] CN1CCN(S(=O)(=O)c2cccc([N+](=O)[O-])c2)CC1
[c] COc1ccc(OC)c(C2CC(=O)N3CN(c4ccccc4)CSC3=C2C#N)c1
Answer: b. CN1CCN(S(=O)(=O)c2cccc([N+](=O)[O-])c2)CC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CN1CCN(S(=O)(=O)c2cccc([N+](=O)[O-])c2)CC1
CN1CCN(S(=O)(=O)c2cccc([N+](=O)[O-])c2)CC1
[3-[(4-methylpiperazin-1-yl)sulfonyl]phenyl]-oxido-oxoazanium