Task: Answer the multiple choice question.
Question: What is the human ether-à-go-go related gene (hERG) inhibition at 10uM of a drug with the SMILES O=c1c2ccccc2c(-c2ccccc2)nn1-c1cc(Cl)ccc1[N+](=O)[O-]?
Constraint: You must return none, one or more options from a, b, or c without using any other words.
Options:
(a) -18.036
(b) -10.478
(c) -8.166
Answer: c. -8.166%.
{#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=c1c2ccccc2c(-c2ccccc2)nn1-c1cc(Cl)ccc1[N+](=O)[O-]
O=c1c2ccccc2c(-c2ccccc2)nn1-c1cc(Cl)ccc1[N+](=O)[O-]
3-(5-chloro-2-nitrophenyl)-1-phenylphthalazin-4-one