Task: Answer the multiple choice question.
Question: Which drug exhibits a 21.398% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. O=C(O)Cc1ccc(NC(=O)c2ccc3c(c2)C(=O)N(CC2CCCO2)C3=O)cc1
b. CC(=O)c1ccc(NC(=O)c2cccc(N3C(=O)c4ccccc4C3=O)c2)cc1
c. O=C(Nc1cccc([N+](=O)[O-])c1)c1ccn[nH]1
d. Cc1noc(C)c1CSc1ncnc2sc(C)c(C)c12
Answer: c. O=C(Nc1cccc([N+](=O)[O-])c1)c1ccn[nH]1
{#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(Nc1cccc([N+](=O)[O-])c1)c1ccn[nH]1
O=C(Nc1cccc([N+](=O)[O-])c1)c1ccn[nH]1
N-(3-nitrophenyl)-1H-pyrazole-5-carboxamide