Task: Answer the multiple choice question.
Question: What is the hERG inhibition at a concentration of 1uM of a compound with the SMILES O=C(Cn1cc[n+](Cc2ccccc2)c1)c1ccc([N+](=O)[O-])cc1.[Br-]?
Constraint: You must return none, one or more options from a, b, or c without using any additional words.
Options:
a. -0.203
b. 8.496
c. 3.411
Answer: a. -0.203\%.
{#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(Cn1cc[n+](Cc2ccccc2)c1)c1ccc([N+](=O)[O-])cc1.[Br-]
O=C(Cn1cc[n+](Cc2ccccc2)c1)c1ccc([N+](=O)[O-])cc1.[Br-]
2-(3-benzylimidazol-3-ium-1-yl)-1-(4-nitrophenyl)ethanone;bromide