Task: Answer the multiple choice question.
Query: Which drug exhibits a 13.795\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a Cc1nn(Cc2cccc(C(=O)NC(C)c3ccc(C(C)(C)C)cc3)c2)c(C)c1[N+](=O)[O-]
b O=C(COC(=O)c1cnccn1)c1cccc([N+](=O)[O-])c1
c CCC(=O)Nc1sc2c(c1C#N)CCC2
d NS(=O)(=O)c1ccc(NC(=S)NC(=O)c2cccnc2)cc1
Answer: b. O=C(COC(=O)c1cnccn1)c1cccc([N+](=O)[O-])c1
{#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(COC(=O)c1cnccn1)c1cccc([N+](=O)[O-])c1
O=C(COC(=O)c1cnccn1)c1cccc([N+](=O)[O-])c1
[2-(3-nitrophenyl)-2-oxoethyl] pyrazine-2-carboxylate