Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest acute oral toxicity rat LD50.
Constraint: You must select all options from a, b, or c without using any other words.
Options:
a: CCN(CCNS(C)(=O)=O)c1ccc(N)c(C)c1
b: O=C(O)CC(NC(=O)COc1ccc(Cl)cc1Cl)C(=O)O
c: O=C(O)CSc1cccc2cccc(CCl)c12
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}