Task: Please answer the multiple choice question.
Question: Which molecules are not Ames mutagenic?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) CCOC1=CC(=O)C(NC(C)=O)=CC1=O
(b) CN(Cc1ccccc1)N=O
(c) O=[N+]([O-])c1ccccc1CBr
Answer: c
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}