Task: Answer the multiple choice question.
Query: Which drug has a -3.777\% 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 other words.
Options:
(a) O=[N+]([O-])c1ccc2nc(-c3ccncc3)[nH]c2c1
(b) N#CCc1c(C#N)c(N)nc(N2CCOCC2)c1C#N
Answer: a. O=[N+]([O-])c1ccc2nc(-c3ccncc3)[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#}
O=[N+]([O-])c1ccc2nc(-c3ccncc3)[nH]c2c1
O=[N+]([O-])c1ccc2nc(-c3ccncc3)[nH]c2c1
6-nitro-2-pyridin-4-yl-1H-benzimidazole