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, d, or e without using any other words.
Options:
[a] CCOC(=O)NCCOc1ccc(Oc2ccccc2)cc1
[b] O=C1CCN(c2ccccc2)N1
[c] CCCCCCCCNC(C)C(O)c1ccc(SC(C)C)cc1
[d] Nc1c([N+](=O)[O-])cc(Cl)cc1[N+](=O)[O-]
[e] CCOP(=S)(OCC)ON=C(C#N)c1ccccc1
Answer: b
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}