Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
a.) CC(=O)ON(C(=O)OC(C)C)c1ccccc1
b.) Nc1ccc(S(=O)(=O)O)c2cccc(S(=O)(=O)O)c12
c.) Cc1cccc(C)c1N(COC(C)C)C(=O)CCl
d.) Cc1cccc(OC(C)C)c1N(C)C(=O)CCl
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}