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, or d without using any other words.
Options:
a. N#Cc1cc(Cl)c2nc(C(F)(F)F)[nH]c2c1
b. N#CC=CCCC#N
c. CCOP(=S)(OCC)Oc1ccc(=O)n(-c2ccccc2)n1
d. COC(C)C=O
Answer: d
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}