Wind is related to the movement of warm and cold air masses. which kind of heat transfer does this represent?

a. radiation
b. conduction
c. convection
d. absorption

The movement of fluid in mass is called convection. Convection is one of the mass transfer processes among others like radiation and conduction. Convection is largely useful in drying techniques for example drying of wet clothes under the sun where the sun's energy causes the convection current