Task: Answer the MCQ question.
Question: What is the hERG inhibition at a concentration of 1uM of a drug with the SMILES O=C(N=Nc1c(O)[nH]c2ccc([N+](=O)[O-])cc12)c1ccccc1[N+](=O)[O-]?
Constraint: You must return none, one or more options from a, b, c, d, or e without using any other words.
Options:
[a] 2.748
[b] 6.508
[c] 16.773
[d] -4.788
[e] 4.575
Answer: a. 2.748\%.
{#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}.
O=C(N=Nc1c(O)[nH]c2ccc([N+](=O)[O-])cc12)c1ccccc1[N+](=O)[O-]
O=C(N=Nc1c(O)[nH]c2ccc([N+](=O)[O-])cc12)c1ccccc1[N+](=O)[O-]
N-[(2-hydroxy-5-nitro-1H-indol-3-yl)imino]-2-nitrobenzamide