Task: Answer the multiple-choice question.
Question: Which drug exhibits a 6.469\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: Cc1c(C(=O)O)nn(-c2ccccc2)c(=O)c1C#N
b: CCCCNc1c(-c2cccc(SC3CCCCC3)c2)nc2ccc(Cl)cn12.O=C(O)C(F)(F)F
c: COc1ccc(-c2c(C)n([O-])c(C)c(C)[n+]2=O)cc1OC
Answer: a. Cc1c(C(=O)O)nn(-c2ccccc2)c(=O)c1C#N
{#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#}
Cc1c(C(=O)O)nn(-c2ccccc2)c(=O)c1C#N
Cc1c(C(=O)O)nn(-c2ccccc2)c(=O)c1C#N
5-cyano-4-methyl-6-oxo-1-phenylpyridazine-3-carboxylic acid