Final answer:
Jasper Johns' 'Flag' is a mixed media work that incorporates encaustic, oil, and collage techniques.
Step-by-step explanation:
Jasper Johns' 'Flag' is an example of a mixed media work that includes the use of encaustic, oil, and collage. Encaustic is a technique in which pigment is mixed with melted wax, and in this case, it was used to create the textured and layered surfaces of the flag. The oil and collage elements add depth and additional visual interest to the composition.