Can someone me in - art and the creative impulse ? ?

2. concrete was an important material in the architecture of
a. mesopotamia.
b. greece.
c. egypt.
d. rome

D it was rome They found that the Romans made concrete by mixing lime and volcanic rock to form a mortar. To build underwater structures, this mortar and volcanic tuff were packed into wooden forms 

The correct answer is:   [c]:   " ansel adams " .