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, d, or e without using any other words.
Options:
a. O=C1CCCCCO1
b. CCC1(c2ccccc2)CCC(=O)N1
c. COP(=O)(OC)OC(=CCl)c1cc(Cl)c(Cl)cc1Cl
d. O=C1CCc2cc(C=CCCN3CCN(c4ccccc4)CC3)ccc2N1
e. CCOP(=S)(NC(C)C)Oc1ccc(C)cc1[N+](=O)[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}