Lollapalooza tours in the early 1990s were important outlets for:a. heavy metal bands

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

Pioneered on 2001: A Space Odyssey (1968) and other projects, ________ was extensively used in Star Wars IV: A New Hope (1977).

A. 3D computer graphics imaging B. a digital audio tape C. motion control D. motion blurring