I would say...
C: Use graphics and content for educational purposes in small amounts if you give the creator credit.
Have a look at the man page for printf:
man 3 printf
Keyboard-Input
Mouse-Input
<u></u>Monitor-Output
Speakers-Output
Printer-Output
Hard Drive<span>-Output</span>
Answer:
It's purpose is to access a webpage.
Explanation:
A URL contains detailed information on the webpage such as, the domain name, protocol, and path. This information directs the browser to the desired page.