Which of the following devices can cause great harm to one’s life with lethal electric shocks?

Which of the following devices can cause great harm to one’s life with lethal electric shocks?
Each correct answer represents a complete solution. Choose two.

A.
SMPS

B.
Floppy drive

C.
Monitor

D.
Keyboard.

Explanation:
A computer monitor and SMPS are at high voltage. Therefore, these devices can be fatal. They
usually have large amount of electric charge stored in capacitors for days after they have been
unplugged from power source.
What is SMPS?
Switch Mode Power Supply (SMPS) is a device that converts raw input power to controlled voltage
and current for the operation of electronic equipment. SMPS uses switches for high efficiency.
Answer options D and B are incorrect. Keyboards and floppy drives do not store electric charge.
Therefore, they cannot cause lethal electric shocks.