Task: Answer the multiple choice question.
Query: Which drug exhibits a 0.467\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: CC(C)[C@H](NC(=O)C1CCN(S(=O)(=O)c2ccc(F)cc2)CC1)C(=O)N1CCCCCC1
b: O=c1oc(-c2ccccc2)cc(Cl)c1Cl
c: Clc1cccc(-c2nnc(SCc3nc4ccccc4[nH]3)n2Cc2ccco2)c1
Answer: b. O=c1oc(-c2ccccc2)cc(Cl)c1Cl
{#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=c1oc(-c2ccccc2)cc(Cl)c1Cl
O=c1oc(-c2ccccc2)cc(Cl)c1Cl
3,4-dichloro-6-phenylpyran-2-one