Task: Answer the multiple-choice question.
Question: Which drug has a 0.665\% 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 other words.
Options:
[a] Cc1cc([N+](=O)[O-])nn1CC(=O)c1ccccc1
[b] CCCOP(=O)(c1ccc(N(C)C)cc1)C(O)c1ccc(N(C)C)cc1
[c] COC(=O)Nc1ccc(S(=O)(=O)NC2CCCCC2)cc1
[d] COc1ccc([N+](=O)[O-])cc1NC(=O)C(C)OC(=O)C1CCC1
Answer: a. Cc1cc([N+](=O)[O-])nn1CC(=O)c1ccccc1
{#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#}
Cc1cc([N+](=O)[O-])nn1CC(=O)c1ccccc1
Cc1cc([N+](=O)[O-])nn1CC(=O)c1ccccc1
(5-methyl-1-phenacylpyrazol-3-yl)-oxido-oxoazanium