Task: Answer the multiple-choice question.
Question: What is the human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM of a drug with the SMILES COc1ccc(C(=O)C[n+]2ccc3c(c2)nc(-c2ccc(OC)cc2OC)n3C)cc1.[Br-]?
Constraint: You must return none, one or more options from a or b without using any additional words.
Options:
a 4.759
b 13.880
Answer: a. 4.759\%.
{#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(C(=O)C[n+]2ccc3c(c2)nc(-c2ccc(OC)cc2OC)n3C)cc1.[Br-]
COc1ccc(C(=O)C[n+]2ccc3c(c2)nc(-c2ccc(OC)cc2OC)n3C)cc1.[Br-]
2-[2-(2,4-dimethoxyphenyl)-1-methylimidazo[4,5-c]pyridin-5-ium-5-yl]-1-(4-methoxyphenyl)ethanone;bromide