The Sanyo Xacti HD1010 Was Named the "2008 Gadget of the Year

The Sanyo Xacti HD1010 was named the "2008 Gadget of the Year." The pistol-shaped Xacti is a digital camera and video camera in one. Instead of the bulky and heavy digital cameras and video recorders of the time, the Xacti combined the functions of both. Xacti takes 4-megapixel stills and 1080i video. While the Xacti looked promising and initial sales increased rapidly, it was just a few years before the cameras in cell phones were able to provide the same capabilities in a much smaller package. As a result, sales dropped rapidly. It is safe to say the Xacti in the _______ stage of the product life cycle. ?

A) decline
B) maturity
C) growth
D) introduction