Task: Answer the multiple choice question.
Query: Which compound exhibits a 0.487\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: O=S(=O)(c1ccccc1)N1CCN(c2nnnn2-c2ccccc2)CC1
b: CCC(CC)NC(=O)COC(=O)c1ccc(OCc2ccc(C(C)=O)cc2OC)c(OC)c1
c: COc1ccc(N2CCN(c3ccc([N+](=O)[O-])cc3Cl)CC2)cc1
Answer: c. COc1ccc(N2CCN(c3ccc([N+](=O)[O-])cc3Cl)CC2)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#}
COc1ccc(N2CCN(c3ccc([N+](=O)[O-])cc3Cl)CC2)cc1
COc1ccc(N2CCN(c3ccc([N+](=O)[O-])cc3Cl)CC2)cc1
1-(2-chloro-4-nitrophenyl)-4-(4-methoxyphenyl)piperazine