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, d, or e without using any other words.
Options:
a.) O=C(Cn1c(=O)sc2ccc(Cl)cc21)N1CCN(CCO)CC1
b.) Cc1cccc(C#N)c1
c.) O=C(O)c1cc(Cl)ccc1O
d.) CCCOc1cccc(C)c1N(COCC)C(=O)CCl
e.) O=C(O)CC(NC(=O)COc1ccc(Cl)cc1Cl)C(=O)O
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}