Which of the Following Scenarios Illustrates How Really New Product

Which of the following scenarios illustrates how really new product ideas disrupt the old ways of doing things?

A) a firm's introduction of a new digital video recorder that makes videocassette recorders for TVs obsolete
B) a firm's introduction of a new range of cell phones that have better features than those offered by its competitors
C) the addition of a new flavored breakfast cereal to a firm's existing line of breakfast cereals
D) the removal of an existing product from a firm's line of perfumes because it isn't producing much profit
E) the way in which the QWERTY keyboard on smart phones reflects the order of letters on manual typewriters