The technique is called Paradigms. Its a style of abstract which is formed by painting on a 3D design reference.
Answer:
"Matrices for printing types were made of copper. However, in printmaking the matrix is whatever is used, with ink, to hold the image that makes up the print, whether a plate in etching and engraving or a woodblock in woodcut."
A way of regarding situations or topics etc.
The correct answer would be the Renaissance, but since that’s not there I’d say the closest would be A.