According to the property of intensity, which colors are the most intense?

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

I'm working on an assignment that has to do with digital art and this is my masterpiece that i've worked on. i was wondering if anyone knew any websites that i could possibly sell my digital artwork? i'd be very appreciated and will gladly mark the right website that does sell digital art as well brainliest! you!

The byzantine style introduced what what into the history of art ?