Task: Answer the multiple-choice question.
Query: Which drug exhibits a 21.668\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: Cc1ccc(NC(=O)CSc2nnc(-c3ccccc3C)o2)cc1C
b: O=C(O)CCC(=O)N1CCC(C(=O)c2cccc(Cl)c2)CC1
c: CCOc1cc(/C=N/NC(=O)Cc2ccc(C(F)(F)F)cc2[N+](=O)[O-])ccc1O
Answer: b. O=C(O)CCC(=O)N1CCC(C(=O)c2cccc(Cl)c2)CC1
{#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-[4-(3-chlorobenzoyl)piperidin-1-yl]-4-oxobutanoic acid