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 additional words.
Options:
a. O=C(O)c1ccccc1-c1ccccc1CO
b. O=C(O)c1nc(Cl)ccc1Cl
c. Nc1ncc(C=Cc2ccc([N+](=O)[O-])o2)nn1
d. CCOP(=S)(OCC)Oc1nc(Cl)c(Cl)cc1Cl
Answer: d
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}