Problem statement: Answer the MCQ question.
Query: What is the human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM of a compound with the SMILES CCn1c(=O)c(-c2nc3ccccc3[nH]2)c(O)c2ccccc21?
Constraint: You must return none, one or more options from a, b, or c without using any other words.
Options:
[a] -2.833
[b] 18.693
[c] 20.439
Answer: b. 18.693%.
{#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}.
CCn1c(=O)c(-c2nc3ccccc3[nH]2)c(O)c2ccccc21
CCn1c(=O)c(-c2nc3ccccc3[nH]2)c(O)c2ccccc21
3-(1H-benzimidazol-2-yl)-1-ethyl-4-hydroxyquinolin-2-one