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, or d without using any other words.
Options:
[a] CC(=O)Nc1ccc(C)c(N)c1
[b] O=[N+]([O-])c1cc(Cl)c(Cl)cc1Cl
[c] Nc1cc(CCO)c(N)c([N+](=O)[O-])c1
[d] C=CCOC(=O)c1ccccc1C(=O)OCC=C
Answer: d
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}