When did scenic effects first take on significant interest in theatre productions?

The term "decorative art" first appeared during what century?

a. 5th century B.C.E b. 5th century C.E. c. 15th century C.E. d. 18th century C.E.

What made up the largest body of traditional Navajo music until the 1960s when country and western music began to dominate popular music of the Navajo?

What will be an ideal response?