Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest LD50 in rats (oral exposure).
Constraint: You must select all options from a, b, or c without using any additional words.
Options:
a. O=[N+]([O-])c1ccc(Oc2c(Cl)cc(Cl)cc2Cl)cc1
b. O=C1OC(=O)c2cccc3cccc1c23
c. CCOP(=S)(OCC)Oc1ccc(C#N)cc1
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}