Task: Answer the MCQ question.
Query: Which compound exhibits a 19.078% 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(Nc1cc([N+](=O)[O-])ccc1O)c1cccc(C(=O)Nc2cc([N+](=O)[O-])ccc2O)c1
b Nc1cc(N)nc(SCC(=O)NNC(=O)c2ccc(Cl)cc2)n1
c CCOC(=O)C(C)(C)Oc1ccc(Cl)cc1
d CC(C)(C)NC(=O)c1cc(F)c(F)cc1Cl
Answer: a. O=C(Nc1cc([N+](=O)[O-])ccc1O)c1cccc(C(=O)Nc2cc([N+](=O)[O-])ccc2O)c1
{#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(Nc1cc([N+](=O)[O-])ccc1O)c1cccc(C(=O)Nc2cc([N+](=O)[O-])ccc2O)c1
O=C(Nc1cc([N+](=O)[O-])ccc1O)c1cccc(C(=O)Nc2cc([N+](=O)[O-])ccc2O)c1
1-N,3-N-bis(2-hydroxy-5-nitrophenyl)benzene-1,3-dicarboxamide