Task: Please answer the multiple choice question.
Question: Which molecules are mutagenic?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: Nc1ccc(NCCO)c([N+](=O)[O-])c1
b: O=CN(O)c1ccc([N+](=O)[O-])cc1
c: O=C(O)c1ccc(Cl)c(Cl)c1
Answer: a, 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}