Task: Answer the multiple-choice question.
Query: Which compound exhibits a 17.042\% 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 other words.
Options:
a: CCOC(=O)c1sc(-c2cccc([N+](=O)[O-])c2)cc1N
b: Cl.Nc1csnc1C(=O)O
c: CCCCn1nc(C(=O)N2CCc3ccccc32)c2ccccc2c1=O
d: CCC(C)Sc1nc2c(cnn2-c2ccc(C)c(C)c2)c(=O)[nH]1
Answer: a. CCOC(=O)c1sc(-c2cccc([N+](=O)[O-])c2)cc1N
{#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#}
CCOC(=O)c1sc(-c2cccc([N+](=O)[O-])c2)cc1N
CCOC(=O)c1sc(-c2cccc([N+](=O)[O-])c2)cc1N
ethyl 3-amino-5-(3-nitrophenyl)thiophene-2-carboxylate