When clean power is being provided, the power supply contains no interference or voltage fluctuation. The possible types of interference (line noise) are electromagnetic interference (EMI) or radio frequency interference (RFI), which is disturbance to the flow of electric power while it travels across a power line. Which of the following is true when it comes to EMI and RFI?

A.
Lightning can induce RFI, which could then interrupt the proper flow of electrical current as it travels over wires to, from, and within buildings.

B.
Electrical motors can induce RFI, which could then interrupt the proper flow of electrical current as it travels over wires to, from, and within buildings.

C.
EMI can be caused by anything that creates radio waves.

D.
Fluorescent lighting is one of the main causes of RFI within buildings today

Explanation:
Lightning and electrical motors can induce EMI, which could then
interrupt the proper flow of electrical current as it travels over wires to, from,
and within buildings. RFI can be caused by anything that creates radio waves.
Fluorescent lighting is one of the main causes of RFI within buildings today.