Task: Answer the multiple-choice question.
Query: Which drug has a -2.569\% 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 or b without using any additional words.
Options:
[a] N#CCC(=O)Nc1ccc(C(=O)OCC(=O)c2ccc3c(c2)OCCO3)cc1
[b] Cn1c(CN2CCCCC2)nc2cc([N+](=O)[O-])ccc21
Answer: b. Cn1c(CN2CCCCC2)nc2cc([N+](=O)[O-])ccc21
{#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#}
Cn1c(CN2CCCCC2)nc2cc([N+](=O)[O-])ccc21
Cn1c(CN2CCCCC2)nc2cc([N+](=O)[O-])ccc21
1-methyl-5-nitro-2-(piperidin-1-ylmethyl)benzimidazole