Okay, I think I've got this. The APEC framework is more of a voluntary, non-binding set of guidelines, while the EU Directive mandates specific legal requirements for member countries. That's likely the key distinction.
Okay, I think I've got this. The key is to join the two DataFrames on the 'transactionId' column, and since itemsDf is much smaller, I should broadcast it to optimize the query. I'm pretty confident option C is the correct answer.
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