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. ClC=C(Cl)Cl
b. CCc1ccc2c(c1)C(=O)c1ccccc1C2=O
c. O=c1nn[nH]c2ccccc12
d. COP(=O)(OC1CCCCC1)SC
e. C1CNCCN1
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}