Task: Answer the multiple-choice question.
Question: Which drug exhibits a 1.998\% 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: O=C1CC(N2CCN(c3nc4ccccc4s3)CC2)C(=O)N1c1ccc(F)cc1
b: CN(C)c1ccc(C(=O)N(Cc2ccccc2)Cc2ccccc2)cc1
c: C=CCN1CC(=O)N2Cc3[nH]c4ccccc4c3C[C@H]2C1=O
Answer: a. O=C1CC(N2CCN(c3nc4ccccc4s3)CC2)C(=O)N1c1ccc(F)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#}
O=C1CC(N2CCN(c3nc4ccccc4s3)CC2)C(=O)N1c1ccc(F)cc1
O=C1CC(N2CCN(c3nc4ccccc4s3)CC2)C(=O)N1c1ccc(F)cc1
3-[4-(1,3-benzothiazol-2-yl)piperazin-1-yl]-1-(4-fluorophenyl)pyrrolidine-2,5-dione