Answer:
Step 1: Define the source of the conflict.
Step 2: Look beyond the incident.
Step 3: Request solutions.
Step 4: Identify solutions both disputants can support.
Step 5: Agreement.
During the cold war, the American officials became concerned that the region will move to Communism thus leading for United States to be involve in the events happening in Vietnam that is why American troops are being send to Vietnam to fight. Three weeks after Diem's death, the A.President John F. Kennedy's assassination happened.
I think it is C, but you can choose to guess or search it up in google.
Because humans see in 2D, while we live in 3D. D = dimension. Our eyes only perceive a flat 2 dimensional image in front of us instead of seeing all 360 degrees around an object at once. This is why we can only see one side of the moon. The sun also decides how much of the moon we see depending on how much light reaches the moon