Answer:
C. Convection
Step-by-step explanation:
There are three types of mode of transfer of energy
1). Conduction: when heat is transferred by medium molecules such that all molecules will remain at their own position and transfer the energy by vibrating at their own position.
Here thermal energy is transferred at smaller rate and medium must be solid medium.
2) Convection: here thermal energy is transferred by medium molecules such that the medium absorbs the heat and move from one position to other position. So here medium molecules also transfer along with the thermal energy
This is possible in liquids and gases.
3) Radiation: In this mode of heat transfer we do not require any medium and here energy is transferred in form of electromagnetic radiations.
So here correct answer is CONVECTION