Answer:
"Using unexpected force to create alarm and a sense of danger"
Explanation:
Terrorism is generally defined as "the unlawful use of violence and intimidation, especially against civilians, in the pursuit of political aims." This shows that the first answer is the best.
The correct answer is D) to stop North Vietnam from spreading communism to Laos, Cambodia, and Thailand
They believed that if Vietnam became communist, then it would cause a domino effect in which all other SEA countries would adopt communism.
Pretty sure this one is C, or Atlantic Ocean coastline full of bays and harbors.
