What is a two-dimensional or implied two-dimensional area defined by line or changes in color called?

Which statement best describes Picasso's Guernica as a work of art?

a. exalts the values of industrial civilization b. uses cubist abstraction to protest technological war c. celebrates the stylized symbols and rituals of Nazism d. eloquently defends film's value as art

Characteristics of the work of Jackson Pollock include __________

A. expressive gesture B. all-over composition C. expression of the artist's inner life D. all of the above