Task: Answer the multiple choice question.
Question: Which drug exhibits a 4.721\% 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: CN1CC=C2C(C#N)=C(N)C(C#N)(C#N)C(CCc3ccccc3)C2C1
b: COCCn1c(C)cc(C(=O)COc2ccc(C)nc2[N+](=O)[O-])c1C
Answer: b. COCCn1c(C)cc(C(=O)COc2ccc(C)nc2[N+](=O)[O-])c1C
{#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#}
1-[1-(2-methoxyethyl)-2,5-dimethylpyrrol-3-yl]-2-(6-methyl-2-nitropyridin-3-yl)oxyethanone