Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest acute oral toxicity (LD50 in rats).
Constraint: You must select all options from a, b, or c without using any other words.
Options:
a. O=c1[nH]nc(-c2ccccc2)c2conc12
b. CC(=O)c1cccc(Oc2ccccc2)c1
c. CCC(C)(O)C(=O)OC1C(=O)OC2CC3C(C)=CC(O)C(O)C3(C)C3C4(O)OCC23C1C(C)C4O
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}