Task: Please answer the multiple choice question.
Question: Which molecules are not Ames mutagenic?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) CC12CCC3c4ccc(O)cc4CCC3C1CCC2O
b) O=[N+]([O-])c1ccc2c3c1ccc1cccc(c13)C1OC21
c) O=[N+]([O-])c1cc([N+](=O)[O-])c2c3c(c4cccc5ccc1c2c54)CCCC3
Answer: a
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}