Atonal music uses one pitch as a reference point

Why was the Isenheim Altarpiece installed in its particular location?

a. It was to let the viewer know he or she was not alone in suffering but that Christ also suffered. b. It was to commemorate St. Christopher. c. It served as a reference for the viewer to consider the significance of monastic life. d. It was considered an offering to the abbey through local guild patronage.

Explain how the Cubist and Futurist movements and artists reflected new attitudes, philosophies, and social and political transformations. Discuss specific works in your response. 

What will be an ideal response?