Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest acute oral toxicity (LD50 in rats).
Constraint: You must select all options from a, b, c, or d without using any other words.
Options:
[a] COC(=O)c1ccc(C)cc1
[b] C#CCOP(=O)(OCCC)c1ccccc1
[c] ClC(Cl)c1cccc(Oc2ccccc2)c1
[d] CN(C)CCCC1c2ccccc2Nc2ccc(Cl)cc21
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}