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 additional words.
Options:
a O=C(O)c1cc(Br)cc2cccnc12
b NC(=O)c1cccc([N+](=O)[O-])c1
c CC(=O)NS(=O)(=O)c1ccc(N)cc1
d COc1cc(Oc2ccc(Cl)cc2Cl)cc([N+](=O)[O-])c1
Answer: a, c, 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}