Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a. N#CCON=C(C#N)c1ccccc1
b. Nc1cccc(O)c1
c. NC(=O)c1ccc(Cl)c([N+](=O)[O-])c1
d. CN(C)N=Nc1ccc(I)cc1
e. CC(=O)CC(=O)Nc1ccc(Cl)cc1C
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}