Task: Answer the multiple-choice question.
Query: What is the human ether-à-go-go related gene (hERG) inhibition at 10uM of a compound with the SMILES O=C1N=C([O-])CN1/N=C/c1ccc(-c2ccc([N+](=O)[O-])cc2)o1.[Na+]?
Constraint: You must return none, one or more options from a, b, c, or d without using any additional words.
Options:
a 8.734
b -8.196
c -17.980
d -0.422
Answer: c. -17.980%.
{#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=C1N=C([O-])CN1/N=C/c1ccc(-c2ccc([N+](=O)[O-])cc2)o1.[Na+]
O=C1N=C([O-])CN1/N=C/c1ccc(-c2ccc([N+](=O)[O-])cc2)o1.[Na+]
sodium;3-[(E)-[5-(4-nitrophenyl)furan-2-yl]methylideneamino]-2-oxo-4H-imidazol-5-olate