Task: Answer the MCQ question.
Question: Which drug exhibits a 11.784\% 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: CC(=O)CCc1ccccc1
b: O=[N+]([O-])c1cccc(CSc2nnc(Cc3ccccc3)n2-c2ccc(F)cc2)c1
Answer: a. CC(=O)CCc1ccccc1
{#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#}
4-cyclohexa-2,4,6-trien-1-ylbutan-2-one