Task: Answer the MCQ question.
Query: What is the hERG inhibition at a concentration of 1uM of a compound with the SMILES Cc1cc[n+]2cc(-c3cccc([N+](=O)[O-])c3)c(-c3cccc([N+](=O)[O-])c3)cc2c1.[Br-]?
Constraint: You must return none, one or more options from a, b, c, or d without using any other words.
Options:
a -22.713
b -0.891
c -0.738
d 9.705
Answer: a. -22.713\%.
{#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}.
Cc1cc[n+]2cc(-c3cccc([N+](=O)[O-])c3)c(-c3cccc([N+](=O)[O-])c3)cc2c1.[Br-]
Cc1cc[n+]2cc(-c3cccc([N+](=O)[O-])c3)c(-c3cccc([N+](=O)[O-])c3)cc2c1.[Br-]
8-methyl-2,3-bis(3-nitrophenyl)quinolizin-5-ium;bromide