Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a. CCCCOCCOCCCO
b. CC(C)(C)C(=O)C1C(=O)c2ccccc2C1=O
c. c1ccc2c(c1)OCCOCCOc1ccccc1OCCOCCO2
d. CC(C)Oc1cccc(C2CC(=O)NC2=O)c1
e. CC(C)=O
Answer: e
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}