Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a 7.877\% 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: CCOC(=O)c1ccc(NC(=O)c2cccnc2)cc1
b: C1COCCNCCOCCOCCN1
c: Cn1c(N)c(C#N)c2c(c1=S)COC(C)(C)C2
d: CCC1CCC(C(=O)NC(C(=O)Nc2ccc3c(c2)OCCO3)C(C)C)CC1
Answer: b. C1COCCNCCOCCOCCN1
{#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#}
C1COCCNCCOCCOCCN1
C1COCCNCCOCCOCCN1
1,4,10-trioxa-7,13-diazacyclopentadecane