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 other words.
Options:
(a) COP(=S)(OC)Oc1ccc([N+](=O)[O-])cc1Cl
(b) CCCC(C)c1cccc(OC(=O)NC)c1
(c) N#Cc1ccc([N+](=O)[O-])cc1C#N
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}