Task: Answer the multiple-choice question.
Query: Which drug exhibits a 15.832\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a Brc1cnc2nc[nH]c2c1
b COc1ccc(CCN2CNc3c(c(=O)n(C)c(=O)n3C)C2)cc1OC
Answer: a. Brc1cnc2nc[nH]c2c1
{#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#}
Brc1cnc2nc[nH]c2c1
Brc1cnc2nc[nH]c2c1
6-bromo-1H-imidazo[4,5-b]pyridine