Task: Answer the MCQ question.
Question: What is the human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM of a compound with the SMILES O=C(COc1cccc(-n2cnnn2)c1)Nc1ccc([N+](=O)[O-])cc1?
Constraint: You must return none, one or more options from a, b, c, or d without using any other words.
Options:
a: -19.685
b: -3.222
c: -43.640
d: -5.720
Answer: c. -43.640%.
{#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(COc1cccc(-n2cnnn2)c1)Nc1ccc([N+](=O)[O-])cc1
O=C(COc1cccc(-n2cnnn2)c1)Nc1ccc([N+](=O)[O-])cc1
N-(4-nitrophenyl)-2-[3-(tetrazol-1-yl)phenoxy]acetamide