Who was known as the "Berlin Bach"?

Which artwork did one American critic describe as "an explosion in a shingle factory"?

a. El Lissitzsky's Beat the Whites with the Red Wedge b. Raoul Hausmann's The Art Critic c. Hans Arp's Fleur Manteau (Flower Hammer) d. Marcel Duchamp's Nude Descending a Staircase

The Arts and Crafts movement came about as a reaction to:

A. the Renaissance. B. the Industrial Revolution. C. the Dark Ages. D. the fall of the Roman empire. E. the Sixties.