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 additional words.
Options:
a CCCCCC#CC(=O)OC
b O=C(O)c1ccccc1C(=O)Nc1cccc2ccccc12
c C#CC1(OC(C)=O)CCCCC1C(C)CC
d CCCCCOC(=O)C=CC(=O)OCCCCC
e FC(F)(F)c1nc2c(Br)c(Cl)c(Cl)cc2[nH]1
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}