Task: Answer the multiple-choice question.
Question: Which drug exhibits a 5.749\% 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: CCCCc1nc2ccccc2c(C(=O)O)c1C
b: CCCS(=O)(=O)N1CCN(S(=O)(=O)c2ccccc2[N+](=O)[O-])CC1
Answer: a. CCCCc1nc2ccccc2c(C(=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#}
CCCCc1nc2ccccc2c(C(=O)O)c1C
CCCCc1nc2ccccc2c(C(=O)O)c1C
2-butyl-3-methylquinoline-4-carboxylic acid