Task: Answer the multiple-choice question.
Query: Which compound exhibits a 12.747\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a O=C(CC1(O)C(=O)N(CCc2ccccc2)c2ccccc21)c1ccccc1O
b CC(C)CNC(=O)c1cccc(NC(=O)COc2ccc([N+](=O)[O-])cc2)c1
c CNC(=O)CN(c1cc([N+](=O)[O-])ccc1OC)S(C)(=O)=O
d COc1ccc(-n2nc3cc(N)c(Br)cc3n2)cc1
Answer: c. CNC(=O)CN(c1cc([N+](=O)[O-])ccc1OC)S(C)(=O)=O
{#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#}
CNC(=O)CN(c1cc([N+](=O)[O-])ccc1OC)S(C)(=O)=O
CNC(=O)CN(c1cc([N+](=O)[O-])ccc1OC)S(C)(=O)=O
2-(2-methoxy-N-methylsulfonyl-5-nitroanilino)-N-methylacetamide