Answer:
Fear of great depression
Explanation:
many believed that after world war II and the subsequent drop in military funding it may bring back the times of the great depression. Instead, consumer demand fueled exceptionally strong economic growth in post-world-war II. With the government no longer needing munitions and soldiers the private economy boomed.
The correct answer is D)macadam. Macadam was an invention keyed by a Scottish man who changed the way we view paving of roads and highways. Macadam is a mixture of small stones crushed together with asphalt, the sticky, black material used for both concrete and macadam. The name Macadam comes from the engineer's name, which was John Loudon McAdam. There had been other attempts at macadam before McAdam, but McAdam improved it and his was the first to arrive in the United States.