What memory is best?

You’ve been asked to upgrade the memory in a computer on the 4th floor. What’s the best way to determine what kind of memory you need?

A) Open the computer and examine the existing memory and available slots

B) Ask the end-user what kind of memory they prefer

C) Get the make and model of the computer or motherboard, and reference the manufacturer documentation

D) Most memory is interchangeable. Use the corporate standard for memory modules

E) Upgrade the computer using anything you might have laying around, i.e., paper clips, chocolate pudding, Pez dispensers