(A) Ships were not able to reach American shores, so America had to trade with other countries by airplane.
(B) ** Ships were able to make it to America faster than ever before. Due to faster travel times for ships countries were able to supply goods faster which increased trade which helps all economies.
(C) People started to come to America to take pictures of the Rough Riders.
EXPLANATIONS BELOW
Concept note-1: -More than a century ago, the opening of the Panama Canal revolutionized international trade by making it much quicker and easier to travel between the Atlantic and Pacific Oceans.
Concept note-2: -Americans knew they needed this to move ships from east to west quickly. If they did that, they would control power because they would control the oceans. The Canal was a geopolitical strategy to make the United States the most powerful nation on earth. Also, the economic impact was massive.
Concept note-3: -The Panama Canal was built to lower the distance, cost, and time it took for ships to carry cargo between the Atlantic and the Pacific Oceans. Before the canal, ships would have to go around the entire continent of South America.
Concept note-4: -The Suez Canal opened in 1869 and represented, along with the Panama Canal, one of the most significant maritime “shortcuts” ever built. It brought a new era of European influence in Pacific Asia by reducing the journey from Asia to Europe by about 6, 000 km by skipping a detour around the Cape of Good Hope.