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 other words.
Options:
(a) c1ccc(Cc2ccccc2OCC2CO2)cc1
(b) O=S(=O)(Nc1ccc(Cl)c(Cl)c1)c1cccc2cccnc12
(c) CCOc1ccc(NC(C)=O)cc1[N+](=O)[O-]
Answer: b
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}