Task: Answer the multiple-choice question.
Question: Which compound exhibits a 2.622\% 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, d, or e without using any additional words.
Options:
a: CC1(C(=O)NC2CCCCC2)CCC(=O)N1Cc1cccs1
b: CCSc1nc(C)c(C(C)=O)cc1C#N
c: CCc1ccc(N2CCN(CCNC(=O)Nc3ccc(OC)cc3)CC2)cc1
d: O=C(NC(n1ccc(=O)[nH]c1=O)C(Cl)(Cl)Cl)C12CC3CC(CC(C3)C1)C2
e: O=C(O)c1ccc2c(c1)C1C=CCC1C(c1cc3c(cc1Br)OCO3)N2
Answer: b. CCSc1nc(C)c(C(C)=O)cc1C#N
{#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#}
CCSc1nc(C)c(C(C)=O)cc1C#N
CCSc1nc(C)c(C(C)=O)cc1C#N
5-acetyl-2-ethylsulfanyl-6-methylpyridine-3-carbonitrile