Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 9.637\% 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. CNc1[nH]ncc1[N+](=O)[O-]
b. O=C(COc1ccc(C(=O)NCCc2ccccc2)cc1)Nc1ccccc1
Answer: a. CNc1[nH]ncc1[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_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#}
CNc1[nH]ncc1[N+](=O)[O-]
CNc1[nH]ncc1[N+](=O)[O-]
[5-(methylamino)-1H-pyrazol-4-yl]-oxido-oxoazanium