Task: Answer the multiple-choice question.
Query: Which compound exhibits a 21.174\% 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 Cc1ccc(C(=O)COC(=O)c2ccncc2)cc1[N+](=O)[O-]
b CC1=CSC2=NC(=O)/C(=C\c3cccn3-c3ccc([N+](=O)[O-])cc3)C(=N)N12
c O=C(Cn1nc(-c2ccc(Cl)cc2)ccc1=O)NCC1CCCO1
d OC(CN1CCN(c2ccccc2)CC1)Cn1c2ccccc2c2ccccc21
Answer: a. Cc1ccc(C(=O)COC(=O)c2ccncc2)cc1[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#}
Cc1ccc(C(=O)COC(=O)c2ccncc2)cc1[N+](=O)[O-]
Cc1ccc(C(=O)COC(=O)c2ccncc2)cc1[N+](=O)[O-]
[2-(4-methyl-3-nitrophenyl)-2-oxoethyl] pyridine-4-carboxylate