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 other words.
Options:
a. O=Cc1c([N+](=O)[O-])cccc1[N+](=O)[O-]
b. c1ccc(CN2CCN=N2)cc1
c. C=CCn1c(=O)n(CC=C)c(=O)n(CC=C)c1=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}