Final answer:
The correct answer is option a. Jurisdiction in the given sentence means 'control or authority' and suggests the policy lacks the legal power to manage or enforce rules on foreign bank accounts.
Step-by-step explanation:
The term jurisdiction in the sentence implies 'control or authority'. It refers to the range or sphere of legal power, where a particular law or set of laws is applicable and where certain legal bodies have the power to enforce laws and make legal judgments.
In the context of the sentence, it indicates that the policy discussed does not have legal authority over foreign bank accounts, meaning it cannot regulate or enforce rules upon them.