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, c, d, or e without using any other words.
Options:
a. CC1(C)CN(c2ccccc2)NC1=O
b. CC(C)C(=O)N(C)C(=O)Oc1cccc(C(C)C)c1
c. COP(=S)(OC)Oc1c(Cl)cc(C)cc1Cl
d. O=[N+]([O-])c1ccc(C=NO)cc1
e. CC(=O)c1ccccc1[N+](=O)[O-]
Answer: d
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}