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, c, or d without using any additional words.
Options:
a: O=C(O)c1ccc(C(=O)O)c2c(C(=O)O)ccc(C(=O)O)c12
b: CCOC(=O)CN(C(=O)CCl)c1c(CC)cccc1CC
c: O=S(=O)(O)c1ccccc1O
d: CCOP(=S)(CC)Oc1ccc(Cl)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}