The answer is (A)
TwiceFormat painter is that icon tool that looks like
a paintbrush that is used to pick up formatting of an existing text and then
paints it on the next text you select. If you wish to apply the formatting to
more than one element, you should double-click the format painter and press esc
key to deactivate.
Answer: this is an example of a contestable market
Explanation: The theory of contestable markets is associated with the American economist William Baumol. In essence, a contestable market is one with zero entry and exit costs. This means there are no barriers to entry and no barriers to exit, such as sunk costs and contractual agreements. In this case due the competition Microsoft may charge less for their product so the barrier's trend is to go down.
Cache are the temporary files that are downloaded onto your computer while going on a website, to clear this, you are getting rid of any of the cache. Not what you downloaded yourself, what the internet page downloaded for you.