Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest LD50 in rats (oral exposure).
Constraint: You must select all options from a, b, c, d, or e without using any additional words.
Options:
a. COC(=O)C1=C(C)NC(C)=C(C(=O)OC)C1c1ccccc1OC(F)F
b. CS(=O)(=O)OCCN(CCOS(C)(=O)=O)S(C)(=O)=O
c. FC(F)(F)c1nc2c(Br)cc(Br)cc2[nH]1
d. CC(C)CCCCCOP(OCCCCCC(C)C)OCCCCCC(C)C
e. CN(N=O)C(=N)N[N+](=O)[O-]
Answer: e
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}