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 CCCCCCCCCCCC(=O)OC1=C(c2c(C)cc(C)cc2C)C(=O)c2ccccc21
b NS(=O)(=O)c1c(Cl)c(Cl)c(Cl)c2[nH]c(C(F)(F)F)nc12
c NN1C(=O)CC(c2cccc(Br)c2)C1=O
d CCOP(=O)(OC=CCl)OCC
e CC1(N)CCC(C(C)(C)N)CC1
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}