Final answer:
The heat transfer that involves movement of hot smoke and gases is called convection. It is one of the three modes of heat transfer, alongside conduction and radiation, which can all occur in scenarios like a fireplace the correct option is c convecton.
Step-by-step explanation:
The heat transfer method that usually occurs through the movement of hot smoke and fire gases is known as convection.
This mode of heat transfer involves the macroscopic movement of a fluid, which can be a liquid or a gas. In the context of a fireplace, as the air gets heated by the flames, it becomes less dense and rises up the chimney, drawing in cooler air from around the room.
This movement of air mass transfers heat throughout the room.
Convection is different from conduction, which is the transfer of heat through stationary matter by physical contact, and from radiation, which involves the transfer of heat by electromagnetic waves.