Back in the Early 1980s, TipeRite Typewriters Were Popular Among

Back in the early 1980s, TipeRite typewriters were popular among students because they were reliable, yet inexpensive. TipeRite was able to make a profit despite its low prices because it kept its costs low. But in the late 1980s and 1990s, more and more students abandoned typewriters and began using personal computers and word processing software. Though the new technology was more expensive than typewriters, it was versatile and powerful. Soon TipeRite couldn't find anyone to buy its products despite its low prices. The company's trouble illustrates that:

A) efficiency doesn't guarantee success if other firms provide products of greater value.
B) it is more important for firms to be efficient than it is to be effective.
C) effectiveness is no longer a relevant concept when there is a change in technology.
D) goods require efficiency, while services require effectiveness.