Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a.) CC(C)OC(=O)OOC(=O)OC(C)C
b.) CN1CCOCC1
c.) CCC(C)C(=O)OC1CCC2(C)C3CC(O)C4C5(O)C(CC42OC13O)C1CN2CC(C)CCC2C(C)(O)C1C(O)C5OC(=O)C(C)(O)CC
d.) CCC(C)(C)O
e.) CCSCCOP(=S)(OC)OC
Answer: b
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}