Problem statement: Answer the multiple-choice question.
Question: What is the human ether-à-go-go related gene (hERG) inhibition at 1uM of a compound with the SMILES CCCCc1c(C)c(C#N)c2[nH]c3ccccc3n2c1=O?
Constraint: You must return none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a: 13.995
b: 3.467
c: 21.076
d: 18.911
e: -2.205
Answer: d. 18.911\%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_1uM__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_1uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_1uM#}{herg_central_at_1uM__units}.
CCCCc1c(C)c(C#N)c2[nH]c3ccccc3n2c1=O
CCCCc1c(C)c(C#N)c2[nH]c3ccccc3n2c1=O
2-butyl-3-methyl-1-oxo-5H-pyrido[1,2-a]benzimidazole-4-carbonitrile