Task: Answer the multiple-choice question.
Question: What is the human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM of a compound with the SMILES CC(=O)c1c(C)[nH]c(C(=O)OCC(=O)Nc2ccc(Cl)cc2[N+](=O)[O-])c1C?
Constraint: You must return none, one or more options from a, b, or c without using any additional words.
Options:
a -0.254
b 20.977
c 8.705
Answer: a. -0.254\%.
{#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}.
CC(=O)c1c(C)[nH]c(C(=O)OCC(=O)Nc2ccc(Cl)cc2[N+](=O)[O-])c1C
CC(=O)c1c(C)[nH]c(C(=O)OCC(=O)Nc2ccc(Cl)cc2[N+](=O)[O-])c1C
[2-(4-chloro-2-nitroanilino)-2-oxoethyl] 4-acetyl-3,5-dimethyl-1H-pyrrole-2-carboxylate