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.) CCOC(=O)C1CC2CC1C1OC21
b.) CCOC(=O)C1CCc2cc(C3CCCCC3)ccc21
c.) ON=C1C=CC(=NO)C=C1
d.) CC1=NN(c2ccc(C)cc2)C(=O)C1
e.) CCC1(NC(N)=O)CCCC1
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}