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, c, or d without using any additional words.
Options:
a: CCCCOCCOC(=O)COc1ccc(Cl)cc1Cl
b: Cc1cc([N+](=O)[O-])cc([N+](=O)[O-])c1O
c: COc1cc(Cl)c(OC)cc1Cl
d: OC(CCN1CCCCC1)(c1ccccc1)C1CC2C=CC1C2
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}