When Purchasing a Mobile Computer, Which of the Following Is

When purchasing a mobile computer, which of the following is NOT recommended?

A) If you have large fingers, you should not purchase a computer with a small, condensed keyboard.
B) Upgrading a mobile computer's memory and internal storage may be less expensive at the time of initial purchase.
C) Consider purchasing a second battery if you plan to use your mobile device for a long time without access to an outlet.
D) The availability of ports is not important because you can always add ports.