Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a 17.215\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a CCN1CCN(S(=O)(=O)c2cccc([N+](=O)[O-])c2)CC1
b CCn1cnc2sc(C(=O)Nc3ccc4c(c3)OCO4)c(C)c2c1=O
c CC(C)OC(=O)C1C2C=CC3(CN(Cc4cccs4)C(=O)C13)O2
d CCOC(=O)C1=C(Cc2ccc(C)cc2)C(=O)c2ccccc2C1=O
Answer: a. CCN1CCN(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_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#}
1-ethyl-4-(3-nitrophenyl)sulfonylpiperazine