Task: Answer the multiple-choice question.
Question: Which compound exhibits a 8.665\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a COc1ccc(OC)c(NC(=O)CSc2nnc(CNC(=O)c3cc(OC)c(OC)c(OC)c3)o2)c1
b CC(=O)n1c2ccccc2c2nc3ccccc3nc21
c COc1ccc(C(=O)N(C)C2CCCN(Cc3ccccc3F)C2)cc1C
Answer: b. CC(=O)n1c2ccccc2c2nc3ccccc3nc21
{#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)n1c2ccccc2c2nc3ccccc3nc21
CC(=O)n1c2ccccc2c2nc3ccccc3nc21
1-indolo[3,2-b]quinoxalin-6-ylethanone