Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a -20.148% 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: O=C(Nc1cccnc1)c1ccc([N+](=O)[O-])s1
b: COc1cccc(N2CCN(c3ccc4nnc(CCC(=O)N5CCN(C)CC5)n4n3)CC2)c1
c: O=C(CCc1nnc2ccc(N3CCCCC3)nn12)NCc1ccco1
Answer: a. O=C(Nc1cccnc1)c1ccc([N+](=O)[O-])s1
{#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#}
O=C(Nc1cccnc1)c1ccc([N+](=O)[O-])s1
O=C(Nc1cccnc1)c1ccc([N+](=O)[O-])s1
5-nitro-N-pyridin-3-ylthiophene-2-carboxamide