Which of the Following Is a Disadvantage of an All-In-One

Which of the following is a disadvantage of an all-in-one printer?

A) it requires more space than having a separate printer, scanner, copy machine, and fax machine
B) it is significantly more expensive than purchasing a printer, scanner, copy machine, and fax machine separately
C) if the device breaks down, users lose all four functions
D) all of the above