Problem statement: Answer the multiple choice question.
Question: Which drug has a -0.278\% 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: CCCCc1ccc(NC(=S)NCc2cccc(OC)c2)cc1
b: COn1c(-c2ccccc2)nc2ccc(Cl)cc21
c: CC1=NN(C(=O)Cc2ccc([N+](=O)[O-])cc2)C(O)(c2cccnc2)C1
Answer: b. COn1c(-c2ccccc2)nc2ccc(Cl)cc21
{#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#}
COn1c(-c2ccccc2)nc2ccc(Cl)cc21
COn1c(-c2ccccc2)nc2ccc(Cl)cc21
6-chloro-1-methoxy-2-phenylbenzimidazole