Task: Answer the multiple choice question.
Query: Which compound exhibits a 18.644\% human ether-à-go-go related gene (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) CC(C)(C)c1cc[n+](-c2nc([O-])sc2C=O)cc1
(b) [O-][N+]1=c2ccc(Nc3ccccc3)cc2=NC12CCCCC2
(c) CC1(C(=O)Nc2c(F)c(F)c(F)c(F)c2F)CC1(Br)Br
Answer: a. CC(C)(C)c1cc[n+](-c2nc([O-])sc2C=O)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#}
CC(C)(C)c1cc[n+](-c2nc([O-])sc2C=O)cc1
CC(C)(C)c1cc[n+](-c2nc([O-])sc2C=O)cc1
4-(4-tert-butylpyridin-1-ium-1-yl)-5-formyl-1,3-thiazol-2-olate