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=c1nc2[nH]c(=O)[nH]cc-2[nH]1
b: O=C(O)C1CCc2cc(C3CCCCC3)c(O)cc21
c: C=CCOc1nc(OCC=C)nc(OCC=C)n1
d: O=C(O)c1ccccc1C(=O)Nc1ccccc1
Answer: d
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}