Task: Answer the multiple choice question.
Query: Which drug has a 13.127\% human ether-à-go-go related gene (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) CCCCN(CCCNc1ncnc2nc[nH]c12)c1ccccc1
b) O=C(Oc1ccc([N+](=O)[O-])cc1)c1cccnc1
c) CCS(=O)(=O)c1ccc2oc(SCC(=O)N3CCCCC3)nc2c1
d) COc1ccc(C(=O)Cn2nnc(-c3cccs3)n2)cc1
Answer: b. O=C(Oc1ccc([N+](=O)[O-])cc1)c1cccnc1
{#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#}
O=C(Oc1ccc([N+](=O)[O-])cc1)c1cccnc1
O=C(Oc1ccc([N+](=O)[O-])cc1)c1cccnc1
(4-nitrophenyl) pyridine-3-carboxylate