Task: Answer the multiple choice question.
Query: Which drug exhibits a 13.383\% 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 other words.
Options:
a. C[C@H](NC(=O)c1ccccc1Cl)C(=O)OCc1cn2cc(Cl)ccc2n1
b. CCONC(=O)Nc1ccccc1[N+](=O)[O-]
c. CCOC(=O)N1CCN(C(=O)Cn2nc(C)n3nc(-c4ccccc4)cc3c2=O)CC1
d. O=C(N1CCOCCOc2ccccc2OCCOCC1)C(F)(F)F
Answer: b. CCONC(=O)Nc1ccccc1[N+](=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#}
CCONC(=O)Nc1ccccc1[N+](=O)[O-]
CCONC(=O)Nc1ccccc1[N+](=O)[O-]
1-ethoxy-3-(2-nitrophenyl)urea