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] c1cc2c(cc1C1CO1)O2
[b] O=C(O)C1C2CCC(O2)C1C(=O)O
[c] CC1=CC2OC3C(O)C(O)C(C)(C34CO4)C2(CO)C(O)C1=O
[d] CNC(=O)ON=C(C)SCC(N)=O
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}