A．Eliminating the original vegetation from the building site.
B．Making the houses in an area similar to one another.
C．Deciding where on a site a house will be built.
D．Surrounding a building with wildflowers and plants.

A．They are changed to make the site more interesting.
B．They are expanded to limit the amount of construction.
C．They are integrated into the design of the building.
D．They are removed for construction.

A．Because many architects studied with Wright.
B．Because Wright started the practice of "land-scraping".
C．Because Wright used elements of envelope building.
D．Because most of the houses Wright built were made of stone.