Which of the following methods can be used to identify the suspected use of heat lamps in a house without entering the house?

A. Identify the lamps inside the house using x−ray machines.

B. Detect the heat emitted by the lamps using infrared rays.

C. Use special cameras to emit ultraviolet light that can detect the heat lamps.

D. Capture the images of lamps inside the house using radars that send radio wave signals.