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: CCCCCCc1ccccc1O
b: O=C(COc1ccc(Cl)cc1Cl)OCC=CCCl
c: Cc1c(N)cccc1Cl
d: COC(=O)Cc1ccccc1
e: O=S1(=O)CCCCO1
Answer: a
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}