Task: Please answer the multiple choice question.
Question: Which molecules are not mutagenic?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a) CC1=CC(=O)C=C(C)C1=O
b) O=[N+]([O-])c1cc([N+](=O)[O-])c(O)c([N+](=O)[O-])c1
c) Nc1ccc2ccccc2c1
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {mutagenic#not &NULL}{mutagenic__names__adjective}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%mutagenic%}
Answer: {%multiple_choice_result}