Task: Answer the multiple-choice question.
Query: Which drug exhibits a 17.864\% 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 additional words.
Options:
(a) CC(=O)c1cc(C#N)c(SCc2ccccc2)nc1C
(b) C=CCOc1cccc(CNn2nnnc2N)c1
(c) CN(Cc1ccccc1)C(=O)CCn1c(=O)oc2ccccc21
(d) CCOC(=O)N1CCN(C(=O)COc2ccc(Cl)cc2)CC1
Answer: a. CC(=O)c1cc(C#N)c(SCc2ccccc2)nc1C
{#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#}
CC(=O)c1cc(C#N)c(SCc2ccccc2)nc1C
CC(=O)c1cc(C#N)c(SCc2ccccc2)nc1C
5-acetyl-2-benzylsulfanyl-6-methylpyridine-3-carbonitrile