The correct answer is A, as the Battle of Midway is considered a turning point in WWII, when US destroyed 4 Japanese aircraft carriers while losing just one US carrier.
The Battle of Midway was a naval battle between the Japanese and the American Navy at the Midway Islands in the Second World War. The battle was induced by Japan and lasted from June 4 to June 1942. It took place six months after the Japanese attack on Pearl Harbor, which led to a state of war between Japan and the United States, and about a month after the Battle of the Coral Sea. The Battle of Midway resulted in the US forces rejecting the attack and destroying 4 Japanese aircraft carriers and a heavy cross against their own loss of an aircraft carrier and a destroyer.
Vasco Nunez de Balboa impacted the world by being a help to establishing the first settlement on the South American continent at Darien, on the coast of the Isthmus of Panama. While leading the expedition in search of gold, he discovered the Pacific Ocean.
