Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 4.489% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCSc1ncc(C#N)c(N)n1
(b) N#CC1=C(N)NC(SCc2ccccc2)=C(C#N)C12CCCCC2
Answer: a. CCSc1ncc(C#N)c(N)n1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCSc1ncc(C#N)c(N)n1
CCSc1ncc(C#N)c(N)n1
4-amino-2-ethylsulfanylpyrimidine-5-carbonitrile