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.) O=[N+]([O-])c1cc([N+](=O)[O-])c(O)c([N+](=O)[O-])c1
b.) CC(C)c1cccc(OC(=O)N(C)C(=O)CCl)c1
c.) CCCCCCc1ccccc1O
d.) CC(=Cc1ccccc1)CC(=O)NCCO
e.) CCCCCCC(C=O)=Cc1ccccc1
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}