It was trench warfare that was used to a great extent in World War I. This led to a significant elongation of the conflict, since targeting soldiers was much harder.
They get emailed about getting promoted
A traditional story about travels or adventures can be Robert Louis Stevenson's Treasure Island. It speaks of a group of pirates in search of a lost treasure and certainly includes travels and adventures.
The Boeing B-29 was used by the United States Air Force towards the end of World War II, as well as in the Korean War. They were only produced from 1943-1946, right at the end of the war. However, they were used by the USAF and Royal Air Force until 1954. The entire line (including the revised version, the B-50) was retired in 1960.
Therefore, the answer is A, since production of the plane stopped in 1946, one year after the end of WWII.
