Task: Answer the multiple-choice question.
Query: Which drug exhibits a -10.521\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: CN(C)c1nc(-c2ccccc2)cc(C(F)(F)F)c1C#N
b: O=C1CC(N2CCN(c3ccc(C(=O)c4ccc(F)cc4)cc3)CC2)C(=O)N1
c: CCCCCn1c(=O)[nH]c2cc(C(=O)NCCc3ccc(OC)c(OC)c3)ccc2c1=O
Answer: b. O=C1CC(N2CCN(c3ccc(C(=O)c4ccc(F)cc4)cc3)CC2)C(=O)N1
{#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#}
3-[4-[4-(4-fluorobenzoyl)phenyl]piperazin-1-yl]pyrrolidine-2,5-dione