Final answer:
Teddy Roosevelt's visit underscored his support for the construction of the Panama Canal, symbolizing U.S. influence and affirming his active role in its creation.
Step-by-step explanation:
The significance of Teddy Roosevelt's visit to the canal zone lies in it being a demonstration of his commitment to the construction and success of the Panama Canal. While Teddy Roosevelt did not personally negotiate the purchase of the canal zone nor initiate the construction of the Panama Canal, his visit was a powerful symbol of U.S. backing and involvement in the project. Roosevelt oversaw the United States' support for Panamanian independence from Colombia, allowing for the subsequent construction of the canal. This visit marked him as the first sitting U.S. president to leave the country during his term and solidified his active role in Panama Canal's creation, which became a vital conduit for international trade and military movement.
The correct answer to the question: What was significant about Teddy Roosevelt's visit to the canal zone? is not directly provided in the choices, but the closest would be that he strongly reinforced the significance of the canal and the U.S. influence in the area.
Answer: B) He initiated the construction of the Panama Canal.