What is a principle of art that combines similar elementsof art in a composition to create a pleasing appearance

What is considered the earliest avant-garde movement, peaking between 1905 and 1907 and featuring a "beastly" style? a)cubism b)fauvism c)abstractism d)surrealism

According to the article in wiki answer, digital communication systems have more benefits than analog systems. they are faster and more flexible, and they offer better performance than analog communication

Sound waves can travel only in the aira. trueb.false