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 other words.
Options:
(a) CCCCCCc1ccc(O)cc1O
(b) O=[N+]([O-])c1ccccc1CBr
(c) Cc1ccccc1[N+](=O)[O-]
(d) Cc1ccc(OC(=O)N(C)N=O)c(C)c1C
Answer: a, b, c
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}