Final answer:
The USA PATRIOT Act of 2001 expanded FBI jurisdiction and granted more authority to federal law enforcement for surveillance operations aimed at preventing terrorism. Option D is correct.
Step-by-step explanation:
The act that expanded FBI jurisdiction, granting it more authority in various matters, is known as the USA PATRIOT Act of 2001. This legislation, officially titled the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001, emerged in response to the 9/11 terrorist attacks. It significantly broadened the powers of federal law enforcement for the surveillance and tracking of individuals suspected of terrorism-related activities, both international and domestic.
The USA PATRIOT Act facilitated the government's ability to monitor electronic communications and provided a legal framework for certain actions, such as the collection of information about people in the aim of protecting the nation. While the act has been the subject of debate due to concerns over privacy rights and potential government overreach, it was a pivotal moment in expanding the scope of federal law enforcement capabilities, including those of the FBI.