The Discussion of Reclassifying Pluto as a Minor Planet or an Interplanetary

Multiple Choice

The discussion of reclassifying Pluto as a minor planet or an interplanetary body illustrates the fact that

A) even scientists are sometimes unsure of what is really a problem.
B) the way we use and change language reflects our efforts to better describe and understand the world around us.
C) even natural phenomena are difficult to define clearly.
D) even those in the hard sciences such as astronomy have a difficult time defining concepts.