Task: Answer the multiple choice question.
Query: Which compound exhibits a 5.407\% 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 additional words.
Options:
a. CCCCc1ccc(-c2ccc(Br)cc2O)nc1
b. O=C(NCCCn1ccnc1)Nc1ccc(Cl)c(Cl)c1
c. COC(=O)c1cccc(NC(=O)c2cccc([N+](=O)[O-])c2)c1
Answer: a. CCCCc1ccc(-c2ccc(Br)cc2O)nc1
{#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#}
CCCCc1ccc(-c2ccc(Br)cc2O)nc1
CCCCc1ccc(-c2ccc(Br)cc2O)nc1
5-bromo-2-(5-butylpyridin-2-yl)phenol