Problem statement: Answer the multiple choice question.
Query: What is the hERG inhibition at 1uM of a drug with the SMILES CNC1=C([N+](=O)[O-])CC([N+](=O)[O-])=C(N2CCN(C(=O)Nc3ccc(Cl)cc3)CC2)N1C?
Constraint: You must return none, one or more options from a, b, or c without using any additional words.
Options:
a: 15.377
b: 0.412
c: 3.185
Answer: c. 3.185\%.
{#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}.
CNC1=C([N+](=O)[O-])CC([N+](=O)[O-])=C(N2CCN(C(=O)Nc3ccc(Cl)cc3)CC2)N1C
CNC1=C([N+](=O)[O-])CC([N+](=O)[O-])=C(N2CCN(C(=O)Nc3ccc(Cl)cc3)CC2)N1C
N-(4-chlorophenyl)-4-[1-methyl-6-(methylamino)-3,5-dinitro-4H-pyridin-2-yl]piperazine-1-carboxamide