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 CNC(=O)Nc1ccccc1
b CCCCCCCCOC(=O)c1cc(O)c(O)c(O)c1
c O=C1OC(=O)c2ccc3c4c(ccc1c24)C(=O)OC3=O
d O=COCCCc1ccccc1
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}