Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a.) CCOP(C)(=S)NOc1cccc2ccccc12
b.) CCCCCCCCc1ccccc1O
c.) Nc1ccc(Cl)c([N+](=O)[O-])c1
d.) CC(=O)CCc1ccc(O)cc1
e.) CCN(CC)C(=O)CC(C)=Cc1ccccc1
Answer: a
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}