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 other words.
Options:
[a] O=C(CCCCC(=O)OCC1CCC2OC2C1)OCC1CCC2OC2C1
[b] CC(=O)C=CC1C(C)=CCCC1(C)C
[c] CC(C)C(Br)C(=O)NC(N)=O
[d] O=C(O)Cc1ccccc1Nc1c(Cl)cc(O)cc1Cl
Answer: c
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}