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, c, d, or e without using any additional words.
Options:
a) c1cc2cccc3c4cccc5cccc(c(c1)c23)c54
b) COc1c(C(C)(C)C)cc([N+](=O)[O-])c(C)c1[N+](=O)[O-]
c) CC(=O)OC(c1ccccc1)N(C)N=O
d) Nc1cc([N+](=O)[O-])cc([N+](=O)[O-])c1O
e) Cc1c(N)cc([N+](=O)[O-])c(N)c1C
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}