Task: Answer the multiple-choice question.
Query: Which compound exhibits a 12.434\% 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 other words.
Options:
[a] Cn1c(=O)n(C)c2ncc(Cl)cc21
[b] Cc1ccc(-n2nc(C)c3c(C)c(CCC(=O)NC(C)c4ccccc4)c(C)nc32)cc1
Answer: a. Cn1c(=O)n(C)c2ncc(Cl)cc21
{#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(=O)n(C)c2ncc(Cl)cc21
Cn1c(=O)n(C)c2ncc(Cl)cc21
6-chloro-1,3-dimethylimidazo[4,5-b]pyridin-2-one