Which statement about convection is correct?
A. Convection occurs when a heated particle comes in contact with another particle, transferring heat. This transfer of heat can occur in solids, liquids, or gases.
B. Convection occurs when a heated particle comes in contact with another particle, transferring heat. This transfer of heat can only occur in solids, not liquids or gases.
C. Convection occurs when heated particles of a material flow toward areas having more thermal energy. This movement of particles can only occur in liquids, not gases or solids.
D. Convection occurs when heated particles of a material flow toward areas having less thermal energy. This movement of particles can only occur in gases and liquids, not solids.