Review the main idea. The task of building the pyramid obviously required a huge work force. Which detail best supports the main idea?
A The construction of the pyramids was a huge accomplishment
B Experts today estimate 20,000-30,000 laborers worked on the pyramid at any one time.
C Whichever shape ramp was used, the Egyptian workers toiled extremely hard
D Large work crews were divided into smaller ones called phyles, which in turn were divided into teams of 10 or 20 )Morell 88-89).