Answer:
President Bush secretly authorized the National Security Agency to eavesdrop on Americans and others inside the United States to search for evidence of terrorist activity without the court-approved warrants ordinarily required for domestic spying, according to government officials.
Explanation:
Under a presidential order signed in 2002, the intelligence agency has monitored the international telephone calls and international e-mail messages of hundreds, perhaps thousands, of people inside the United States without warrants over the past three years in an effort to track possible "dirty numbers" linked to Al Qaeda, the officials said.
Answer:
B- Dependent clause
Explanation: An example : 'My father is reading a book because my mother is sleeping.' 'My father is reading a book' is an independent clause and could be a sentence on its own. 'Because my mother is sleeping' is dependent and makes no sense without its independent counterpart. Dependent clauses often don't make sense on their own.