Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a.) CCOP(=O)(OCC)OC(=CC(=O)OC)CC(=O)OC
b.) CCCCC(CC)COC(=O)OOC(=O)OCC(CC)CCCC
c.) c1ccc(P(C2CCCCC2)C2CCCCC2)cc1
d.) CCCC=O
e.) O=C1NN=C(c2ccccc2)CO1
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}