Task: Please answer the multiple choice question.
Question: Which molecules are not mutagenic?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. Nc1ccccc1N
b. COc1cc(Oc2ccc(Cl)cc2Cl)cc([N+](=O)[O-])c1
c. c1ccc2cc3c(ccc4cccnc43)cc2c1
d. COc1cc(N[C@H](C)CCCN)c2ncccc2c1
Answer: 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}