Task: Answer the multiple-choice question.
Question: Which compound exhibits a -1.403\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] O=C(C(=O)N1CCc2ccccc2C1)c1cn(CC(=O)N2CCCC2)c2ccccc12
[b] CC(=O)c1c(C)[nH]c(C(=O)N2CCCCCC2)c1C
Answer: b. CC(=O)c1c(C)[nH]c(C(=O)N2CCCCCC2)c1C
{#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#}
CC(=O)c1c(C)[nH]c(C(=O)N2CCCCCC2)c1C
CC(=O)c1c(C)[nH]c(C(=O)N2CCCCCC2)c1C
1-[5-(azepane-1-carbonyl)-2,4-dimethyl-1H-pyrrol-3-yl]ethanone