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, c, or d without using any other words.
Options:
a: Oc1cc(Cl)cc(Cl)c1Cl
b: O=[N+]([O-])c1ccc2ccc3cccc4c3c2c1C1OC41
c: CCOS(=O)(=O)c1ccc(C)cc1
d: [N-]=[N+]=NCc1ccccc1
Answer: a
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}