Why should companies change their printer default passwords and settings?

Why should companies change their printer default passwords and settings?
A . to enable the IT team to remotely update the firmware and diagnose problems with a low effort
B. to prevent users from printing non-business documents like holiday photos
C. to set all devices to known good passwords, making it easier for IT to access them
D. to ensure that the printers remain within the control of the company and are not hacked with a low effort

Answer: D