Final answer:
The "Leap Frog" by Hans Christian Andersen was made in Denmark, which is celebrated for its literary contributions through Andersen's fairy tales. Portugal initiated the era of Atlantic exploration, and Germany was the first to provide health insurance for workers. Therefore, the correct option is A) Denmark.
Step-by-step explanation:
The "Leap Frog" is a fairy tale written by Hans Christian Andersen, a renowned author from Denmark. Therefore, the answer to the question is A) Denmark. Hans Christian Andersen's fairy tales are celebrated for their imaginative storytelling and moral lessons they convey. His works are a cornerstone of Da_nish literature and have been translated into numerous languages, enchanting readers worldwide. The story of the "Leap Frog" is just one example of Andersen's ability to imbue animals and inanimate objects with life to create engaging and memorable stories.
Regarding the answer to the reference questions, the correct answer to which country initiated the era of Atlantic exploration is D) Portugal. Portugal was a pioneering nation in the Age of Discovery, with explorers such as Vasco da Gama and Ferdinand Magellan leading the way in maritime exploration. For which country was the first to provide health insurance for workers, the answer is B) Germany, which introduced this landmark social welfare system under Chancellor Otto von Bismarck in the late 19th century.