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.) COc1ccc(OC)cc1
b.) COC(=O)CNCP(=O)(O)Oc1ccccc1
c.) NCCOCNc1ccccc1
d.) COC(=O)Nc1ccc(S(=O)(=O)NN)cc1
e.) CCOP(=S)(OCC)SCn1nc(CC)ccc1=O
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}