Gal Runs a Music Store

Gal runs a music store. He has a desktop computer in the back room that acts as a server. He has a point-of-sale terminal that connects to the desktop. He also has a notebook (using in-store wireless access to the Internet) that can be carried around the store to look up current items in stock, or to search for items from one of his suppliers for special orders. Which of the following statements is true?

A) Gal must have a Web site in order to use his notebook.
B) The notebook is on the same network as the point-of-sale terminal.
C) Gal must have an ISP in order to access the Internet from his notebook.
D) The notebook will work only when the desktop computer is turned on.
E) All of the above are true.