Task: Answer the multiple-choice question.
Question: Which drug has a 2.269\% 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 Cn1c(-c2ccccc2)cccc1=O
b O=C1CCC(=O)N1c1ccc(CSc2nc3ccccc3[nH]2)cc1
Answer: a. Cn1c(-c2ccccc2)cccc1=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#}
Cn1c(-c2ccccc2)cccc1=O
Cn1c(-c2ccccc2)cccc1=O
1-methyl-6-phenylpyridin-2-one