Task: Answer the multiple choice question.
Query: Which drug exhibits a 12.447% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CCCCSc1nc(C)[nH]c1[N+](=O)[O-]
b: CC(NC(=O)CSc1nc2c(cc1C#N)CN(C)CC2)c1ccccc1
Answer: a. CCCCSc1nc(C)[nH]c1[N+](=O)[O-]
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCCSc1nc(C)[nH]c1[N+](=O)[O-]
CCCCSc1nc(C)[nH]c1[N+](=O)[O-]
4-butylsulfanyl-2-methyl-5-nitro-1H-imidazole