Task: Answer the multiple choice question.
Query: Which compound has a 12.766\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) CC(=O)c1cc(C(C)=O)c(C)[n+](C)c1C.[O-][Cl+3]([O-])([O-])[O-]
(b) COc1ccc(NC(=O)CN(C)C(=O)c2cccc(S(=O)(=O)N3CCN(c4ccccc4)CC3)c2)cc1
Answer: a. CC(=O)c1cc(C(C)=O)c(C)[n+](C)c1C.[O-][Cl+3]([O-])([O-])[O-]
{#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#}
CC(=O)c1cc(C(C)=O)c(C)[n+](C)c1C.[O-][Cl+3]([O-])([O-])[O-]
CC(=O)c1cc(C(C)=O)c(C)[n+](C)c1C.[O-][Cl+3]([O-])([O-])[O-]
1-(5-acetyl-1,2,6-trimethylpyridin-1-ium-3-yl)ethanone;perchlorate