Task: Answer the multiple choice question.
Query: What is the human ether-à-go-go related gene (hERG) inhibition at 1uM of a drug with the SMILES COc1ccc(Cn2c(-c3ccco3)nc3oc4ccccc4c(=O)c3c2=O)cc1?
Constraint: You must return none, one or more options from a, b, c, or d without using any other words.
Options:
(a) 3.277
(b) 0.850
(c) 5.611
(d) 16.406
Answer: b. 0.850\%.
{#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}.
COc1ccc(Cn2c(-c3ccco3)nc3oc4ccccc4c(=O)c3c2=O)cc1
COc1ccc(Cn2c(-c3ccco3)nc3oc4ccccc4c(=O)c3c2=O)cc1
2-(furan-2-yl)-3-[(4-methoxyphenyl)methyl]chromeno[2,3-d]pyrimidine-4,5-dione