Task: Answer the multiple choice question.
Query: What is the hERG inhibition at a concentration of 10uM of a compound with the SMILES CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C?
Constraint: You must return none, one or more options from a, b, or c without using any other words.
Options:
a 20.248
b -20.950
c -5.793
Answer: a. 20.248%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_10uM__names__noun} of a {#compound|drug!} with the {SMILES__description} {SMILES#}?
Constraint: You must return none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{herg_central_at_10uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_10uM#}{herg_central_at_10uM__units}.
CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C
CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C
3-butyl-7-methyl-8-(4-phenylphenyl)purine-2,6-dione