When buying a laptop computer, there are three common features that are often considered by buyers: event a) tablet screen, event b) backlit keyboard, event cc) cd/dvd drive. 25% of the purchasers request a tablet screen (event a), 50% request a backlit keyboard (event b), 85% request cd/dvd drive (event c), 90% request a tablet screen (event a) or a cd/dvd drive (event c) or both, 95% request one or more of these three features, interestingly no one has ever wanted a tablet screen (event a) and a backlit keyboard (event b). what is the most popular model of computer? a. a backlit keyboard and a cd/dvd drive but no tablet screen (b and c but not a)b. a tablet screen and a cd/dvd drive but no backlit keyboard (a and c but not b)c. a cd/dvd drive without either a tablet screen or a backlit keyboard (c but not a or b)