Task: Answer the multiple choice question.
Query: Which drug exhibits a 7.975\% 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 other words.
Options:
[a] Nc1nn2c(-c3ccccc3)cc(=O)[nH]c2c1N=Nc1ccc(O)cc1
[b] O=C1CC(c2cc([N+](=O)[O-])ccc2Cl)c2c(ccc3ccccc23)N1
Answer: a. Nc1nn2c(-c3ccccc3)cc(=O)[nH]c2c1N=Nc1ccc(O)cc1
{#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#}
Nc1nn2c(-c3ccccc3)cc(=O)[nH]c2c1N=Nc1ccc(O)cc1
Nc1nn2c(-c3ccccc3)cc(=O)[nH]c2c1N=Nc1ccc(O)cc1
2-amino-3-[(4-hydroxyphenyl)diazenyl]-7-phenyl-4H-pyrazolo[1,5-a]pyrimidin-5-one