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 or b without using any additional words.
Options:
(a) O=C(O)c1ccc(C(=O)O)c2c(C(=O)O)ccc(C(=O)O)c12
(b) COP(=S)(OC)Oc1ccc([N+](=O)[O-])c(Cl)c1
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}