Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest LD50 in rats (oral exposure).
Constraint: You must select all options from a, b, c, or d without using any other words.
Options:
[a] COC(=O)CC(SP(=O)(OC)OC)C(=O)OC
[b] COCCOC(=O)CC#N
[c] CC(C)=CC1C(C(=O)O)C1(C)C
[d] CC(C)CN(CC(=O)NN=Cc1ccc([N+](=O)[O-])o1)CC(C)C
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}