Answer: sort of a high-pitched. They sorta sometimes do sound like children.
Explanation:
Ellsworth Kelly (A)
All known artists in the question have worked with landscape portraits, including Frida Kahlo who mainly did self-portraits. Ellsworth Kelly is known for his minimalism works.
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."