What type of tripod heads are ball heads with an unlock movement that make repositioning, when necessary, easy? A. precision heads
B. freedom heads
c. fluid heads
D. pan and tilt heads

Which statement is true? select one: a. all art created in florence during the renaissance was commissioned by the medici family. b. without wealthy patrons, it is likely that many italian renaissance works would not have been created. c. religion was the driving force behind works created by leonardo and michelangelo. d. the public was responsible for determining whether an artwork was great.