At the project closure step, which activity is performed? a. documenting learning from the project b. documenting the project risks c. selecting the team members d. drafting the project proposal document

Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.