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.