Color in the movies didn’t become commercially widespread until when?

A film that dramatizes the idea that life is a continuous series of paradoxes and contradictions characterized by ambiguities and discrepancies is said to contain cosmic irony.

Answer the following statement true (T) or false (F)

The first American film to fully utilize "every known trick of the filmmaker's trade," resulting in a masterful work, was

a) Citizen Kane.
b) Fantasia.
c) The Wizard of Oz.
d) The Jazz Singer.