Task: Answer the multiple-choice question.
Question: Which compound exhibits a 3.640\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] CC1Cc2ccccc2N1C(=O)Cn1cc([N+](=O)[O-])cn1
[b] Nc1c(-c2cccc(Cl)c2)cnn1-c1ccccc1
Answer: a. CC1Cc2ccccc2N1C(=O)Cn1cc([N+](=O)[O-])cn1
{#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#}
CC1Cc2ccccc2N1C(=O)Cn1cc([N+](=O)[O-])cn1
CC1Cc2ccccc2N1C(=O)Cn1cc([N+](=O)[O-])cn1
[1-[2-(2-methyl-2,3-dihydroindol-1-yl)-2-oxoethyl]pyrazol-4-yl]-oxido-oxoazanium