The composer of this selection called this work a(n)?

The Tree of Jesse is a work from:

A. the golden age of stained glass. B. the Pueblo people of San Ildefonso. C. the 15th century. D. the first wave of feminist art. E. American ex-slaves of the 19th century.

The technique used to prompt journalists and others to post content about a company and its products at no charge is known as ______.

What will be an ideal response?