Problem statement: 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 compound with the SMILES O=C(O)c1ccc[n+](Cc2ccc([N+](=O)[O-])cc2)c1.[Br-]?
Constraint: You must return none, one or more options from a or b without using any other words.
Options:
[a] 8.277
[b] 13.727
Answer: b. 13.727\%.
{#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}.
O=C(O)c1ccc[n+](Cc2ccc([N+](=O)[O-])cc2)c1.[Br-]
O=C(O)c1ccc[n+](Cc2ccc([N+](=O)[O-])cc2)c1.[Br-]
1-[(4-nitrophenyl)methyl]pyridin-1-ium-3-carboxylic acid;bromide