Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest rat LD50 (oral exposure).
Constraint: You must select all options from a, b, c, d, or e without using any other words.
Options:
a. OCCOc1ccccc1
b. CN1C(=O)CC(=O)N(c2ccccc2)c2cc(Cl)ccc21
c. COc1c(C)ccc(C)c1N(COC(C)C)C(=O)CCl
d. COP(=S)(OC)Oc1ccc([N+](=O)[O-])c(C)c1
e. O=c1sc2ccccc2c(O)c1C1CC(c2ccc(-c3ccc(Br)cc3)cc2)Cc2ccccc21
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}