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) CCC(=O)OCc1ccc([N+](=O)[O-])cc1
(b) COc1cc(N)c([N+](=O)[O-])cc1N
(c) Nc1ccc(S(N)(=O)=O)cc1
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}