Task: Please answer the multiple choice question.
Question: Which molecules are mutagenic?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. COc1c([N+](=O)[O-])cc([N+](=O)[O-])cc1[N+](=O)[O-]
b. Cc1cccc(C)c1NO
c. CCOc1ccccc1N
d. NC(Cc1ccc(O)c([N+](=O)[O-])c1)C(=O)O
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}