Task: Answer the MCQ question.
Question: What is the human ether-à-go-go related gene (hERG) inhibition at 10uM of a drug with the SMILES O=C(C[n+]1cccc2ccccc21)c1ccc([N+](=O)[O-])cc1.[Br-]?
Constraint: You must return none, one or more options from a or b without using any additional words.
Options:
(a) -72.358
(b) 11.771
Answer: a. -72.358%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_10uM__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_10uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_10uM#}{herg_central_at_10uM__units}.
O=C(C[n+]1cccc2ccccc21)c1ccc([N+](=O)[O-])cc1.[Br-]
O=C(C[n+]1cccc2ccccc21)c1ccc([N+](=O)[O-])cc1.[Br-]
1-(4-nitrophenyl)-2-quinolin-1-ium-1-ylethanone;bromide