Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a.) COP(=O)(OC)OC(=CCl)c1cc(Cl)ccc1Cl
b.) CC(C)(OO)c1ccccc1
c.) COc1c(OP(=S)(NC(C)C)OC)cnn(C)c1=O
d.) Cc1onc2c(=O)[nH]nc(-c3ccccc3)c12
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}