Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest rat LD50 (oral exposure).
Constraint: You must select all options from a, b, or c without using any other words.
Options:
a. CCOC(=O)C1CC2C=CC1C2
b. [O-][n+]1c2ccccc2[n+]([O-])c2c3ccccc3ccc21
c. Cc1cc(=O)c2c(C)ccc(C)c2o1
Answer: b
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}