pick hard and soft or gritty
Answer: C- Engraving
Explanation: accomplished by pushing small v-shaped metal rod called a burin, across a metal plate, usually of copper or zinc, forcing the metal up and off the plate in slivers. Line engravings were commonly used to illustrate books and reproduce works of art in the era before photography.
Corbel dome : arch like construction method to span a space or void in a structure such as a entryway.
Tholos : Beehive like tomb; Burial structure made out of mud bricks and stones.
Rotunda : Round building or dome.
Hope this helps! :)
