Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a) CNC(C)C(O)c1ccccc1
b) O=C(O)CC(NC(=O)COc1ccc(Cl)cc1Cl)C(=O)O
c) Cc1cccc(NC(N)=O)c1
d) NC1=NC(=O)C(c2ccccc2)O1
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}