For output devices, an office professional can use a:

The correct choice of a printer as an output device highlights its primary function, which is to take electronic data and convert it into a physical format, typically on paper. This makes printers essential for producing hard copies of documents, images, and graphics, which can be distributed or filed. In an office setting, where physical documents are often required for communication, record-keeping, or presentations, printers serve a vital role.

While monitors do display information, they are considered output devices as well; however, they do not produce a tangible output. Scanners, on the other hand, are used to convert physical documents into digital form, serving as input devices rather than output devices. Keyboards function exclusively as input devices, allowing users to enter data into a computer. Thus, the classification of a printer as an output device stands out clearly due to its unique ability to create tangible results from digital data, fulfilling the specific definition of output devices.