Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 10.435\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) Nc1ccc2nc(-c3ccccc3)[nH]c2c1
(b) Cc1cc(OC(=O)c2ccccc2Br)cc(=O)n1C
Answer: a. Nc1ccc2nc(-c3ccccc3)[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#}
Nc1ccc2nc(-c3ccccc3)[nH]c2c1
Nc1ccc2nc(-c3ccccc3)[nH]c2c1
2-phenyl-3H-benzimidazol-5-amine