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.) C=COC(=O)c1ccccc1
b.) CCOP(=S)(NC)Oc1ccc(SC)c(C)c1
c.) CCCN(CCC)C(=O)SCc1ccccc1
d.) Cc1cccc([N+](=O)[O-])c1[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}