Task: Answer the multiple-choice question.
Question: Which compound has a 5.712\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] CC(=O)c1cccc(NC(=S)NC(=O)Cc2ccccc2)c1
[b] CCCCn1c(=O)c(Cc2ccccc2)c(O)c2ccccc21
[c] Cc1ccc(S(=O)(=O)N(CC(=O)NCc2ccccn2)c2ccc(Cl)cc2)cc1
[d] COc1ccc(Cc2nn[nH]n2)cc1
Answer: b. CCCCn1c(=O)c(Cc2ccccc2)c(O)c2ccccc21
{#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#}
CCCCn1c(=O)c(Cc2ccccc2)c(O)c2ccccc21
CCCCn1c(=O)c(Cc2ccccc2)c(O)c2ccccc21
3-benzyl-1-butyl-4-hydroxyquinolin-2-one