Task: Answer the multiple-choice question.
Question: Which compound exhibits a 2.864\% 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 additional words.
Options:
a: O=C(CCC(=O)OCc1cccc([N+](=O)[O-])c1)Nc1ccccc1Cl
b: CN1C(C(=O)NCc2cccc(C(F)(F)F)c2)CC2Cn3c(nc4cc(Cl)c(Cl)cc43)C21
c: CCC(=O)Oc1cccc(C(=O)Nc2cccc(NC(=O)c3ccco3)c2)c1
Answer: a. O=C(CCC(=O)OCc1cccc([N+](=O)[O-])c1)Nc1ccccc1Cl
{#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#}
O=C(CCC(=O)OCc1cccc([N+](=O)[O-])c1)Nc1ccccc1Cl
O=C(CCC(=O)OCc1cccc([N+](=O)[O-])c1)Nc1ccccc1Cl
[3-[[4-(2-chloroanilino)-4-oxobutanoyl]oxymethyl]phenyl]-oxido-oxoazanium