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, d, or e without using any other words.
Options:
a.) O=C(NC1CC1)OCC(O)C1COc2ccccc2O1
b.) O=C(Cl)C1C2C=CC(C2)C1C(=O)Cl
c.) CSc1nnc(C(C)(C)C)c(=O)n1N
d.) C=CCOc1nc(OCC=C)nc(OCC=C)n1
e.) CCCC1OP(=S)(Cl)OCC1CC
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}