The Great Pyramids were . commemorative monuments for pharaohs temples used by priests and priestesses residences for rulers and their households government and administration buildings

Explanation:

The  pyramids are four sided structures, its base is rectangular and all the four sides slope upward and meet at a point. All the sides are triangular.  

People of various cultures have constructed pyramids throughout history but most famous pyramids are the one constructed 4,500 years ago in Egypt. Other pyramids are found in South america, central america and Mexico.  

The Egyptian pyramids are more impressive and massive than the ones found in Americas, they are the burial places for Pharaohs. The Egyptian pyramids had both the people and items for the pharaohs to have a good afterlife as they were the final resting places for pharaohs and left for the afterlife.

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.