Task: Answer the MCQ question.
Query: Which drug exhibits a 13.644\% 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. CC1Cc2ccccc2N1C(=O)c1cnsn1
b. COc1ccccc1N1CCN(C(=O)C2CCCN(c3ncnc4c3nc3n4CCCCC3)C2)CC1
Answer: a. CC1Cc2ccccc2N1C(=O)c1cnsn1
{#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#}
CC1Cc2ccccc2N1C(=O)c1cnsn1
CC1Cc2ccccc2N1C(=O)c1cnsn1
(2-methyl-2,3-dihydroindol-1-yl)-(1,2,5-thiadiazol-3-yl)methanone