How to shop for speakers<br>Decide how you'll use the speakers. The variety of speaker builds suits individual speakers for different tasks. For casual music listening, a pair of bookshelf speakers would be more than enough.

Based on that paragraph can we conclude that this sentence is true?
you don't need to know how to use the speakers. 

Select from the following.
 (a). Yes.
 (b). It's impossible to say.
 (c). No.