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, or c without using any other words.
Options:
a: CCCCC[C@@H](CC)OC(=O)c1cccc(C(=O)O[C@H](CC)CCCCC)c1
b: COP(=S)(OC)Oc1ccc(N=O)c(C)c1
c: Cc1cccc([N+](=O)[O-])c1C
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}