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) C=C(Cl)c1ccc([N+](=O)[O-])cc1
b) COc1ccccc1C=O
c) Cc1onc2c(=O)[nH]nc(-c3ccccc3)c12
d) Nc1cccc([N+](=O)[O-])c1
e) CC(C)(N=C=O)c1cccc(C(C)(C)N=C=O)c1
Answer: d
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}