Write the next sentence in this paragraph:

How to learn computer applications
Know what the software does.
This gives you an idea of which buttons are for what. Often title gives you hints.

pick from the following. A). Look at and read the entire open window. Do not get tunnel vision on one portion of the window. B). However, most software would have an opening or closing button with a number next to it. Even if it doesn't, there are some other functions you can think of. C). Windows: apply an application to a new computer. \ windows: turn on your computer by pressing start + r button. D). If you think that a particular button means " troubleshooting " don't take it if it means " software problems. " Use some of these tips : Open a web browser.
A).