Task: Please answer the multiple choice question.
Question: Which molecules are Ames mutagenic?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: O=[N+]([O-])c1ccc2ccccc2c1
b: CN(CCO)C(=O)Nc1ccc(Cl)c(Cl)c1
c: O=[N+]([O-])c1cccc2c([N+](=O)[O-])cccc12
d: CCCCCCCCOc1ccc(C(=O)O)cc1
Answer: a, 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}