Secondary sources offer description and interpretation of primary sources

Nam June Paik was an innovator in which of these media?

a) video sculpture b) film c) photography d) ready-mades

As light intensity increases, what happens to depth of field?

A) the aperture can be larger, increasing depth of field B) the aperture can be smaller, increasing depth of field C) the aperture can be larger, decreasing depth of field D) the aperture can be smaller, decreasing depth of field E) the aperture may be damaged, resulting in no depth of field