Ricky Enables Dynamic Lock Authentication on His Computer Using His

Multiple Choice

Ricky enables dynamic lock authentication on his computer using his mobile device. He walks around his cubicle without locking his computer. When he returns to his seat, he notices that the computer did not automatically lock the screen.
Why do you think this happened?

A) His mobile device was within the range of the computer.
B) His computer was running on the Windows 10 operating system.
C) His mobile device and the computer were not connected to the Internet.
D) His mobile device does not have Bluetooth technology.