The device is a burner from an electric stove. It is used to transfer heat to a pot by A. Conduction B. Convection C. Radiation D. Friction

A device is a burner from an electric stove. Then the conduction heat is transferred to a pot.

Conduction heat is a method of heat transfer in which the the transfer is takes place by direct contact between objects. From the question, it is clear that, the burner from electric stove transfers energy to a bottom of the pot sitting on it.

I'm pretty positive that it's A. Conduction. Just refer to the definition of it.