Problem statement: Answer the multiple-choice question.
Question: What is the hERG inhibition at a concentration of 1uM of a drug with the SMILES CC(=O)C1=C(O)C(=O)N(c2ccc(Br)cc2)C1c1ccc([N+](=O)[O-])cc1?
Constraint: You must return none, one or more options from a, b, or c without using any additional words.
Options:
(a) 7.132
(b) 13.771
(c) 4.174
Answer: c. 4.174\%.
{#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)C1=C(O)C(=O)N(c2ccc(Br)cc2)C1c1ccc([N+](=O)[O-])cc1
CC(=O)C1=C(O)C(=O)N(c2ccc(Br)cc2)C1c1ccc([N+](=O)[O-])cc1
3-acetyl-1-(4-bromophenyl)-4-hydroxy-2-(4-nitrophenyl)-2H-pyrrol-5-one