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: c1ccc2ncccc2c1
b: Oc1cccc2ccccc12
c: NC1=NCC(CN2CCN(c3ccccc3)CC2)O1
d: CNN=Nc1ccccc1
e: CCC(C)(C)c1ccc(O)cc1
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}