"Egyptian society was highly stratified." What does this mean?

A) it was devoted to massive building projecta

B) it was divided into rigid social classes

C) it relied on slave labor

D) it was based on agriculture

The telegraph, the transatlantic telegraph cable, and the telephone were important to businesses after 1850 because of a. they created a system for developing new inventions. b. they filled a need that other inventions of the day could not. c. they attracted investors and created the stock market. d. they made picture-taking a popular american pastime.