A survey reveals that on a small island initially 40 people have jobs, 10 people are not working but looking for jobs, and 30 people are neither working nor looking for work. Suppose that 10 of the 30 people who weren't working or looking for work now begin looking for work. There are now 20 people without jobs but looking for work and 40 people working. The unemployment rate: A. falls to 25%. OB. rises to 33.3%. C. rises to 50%. OD. Nothing happens to the unemployment rate, because these people weren't working before and they aren't working now.