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([N+](=O)[O-])cc1
[b] COC1=C(OC)C(=O)C(CCCCCCCCCCO)=C(C)C1=O
[c] CC=CC(=O)N(CC)c1ccccc1C
[d] COc1ccc(N)cc1OC
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}