Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 3.339\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] COc1cccc(OC)c1C(=O)N1CCN(Cc2ccc3c(c2)OCO3)CC1
[b] Cc1cc2nc(-c3cccnc3SCC(=O)NCc3ccco3)[nH]c2cc1C
[c] Cc1ccc(NC(=O)CN2CCc3ccccc3C2)cc1F
[d] Cc1cc(Br)cn2ccnc12
Answer: d. Cc1cc(Br)cn2ccnc12
{#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#}
Cc1cc(Br)cn2ccnc12
Cc1cc(Br)cn2ccnc12
6-bromo-8-methylimidazo[1,2-a]pyridine