Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest acute oral toxicity rat LD50.
Constraint: You must select all options from a, b, or c without using any additional words.
Options:
a. CN=NNc1ccc([N+](=O)[O-])cc1
b. CNC(=O)Oc1cc(C)c(NC(=O)O)c(C)c1
c. CCOC(=O)c1ccc([N+]([O-])=Cc2ccc(N(CC)CC)cc2)cc1
Answer: b
Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest {acute_toxicity__names__noun}.
Constraint: You must select all options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}