Which example of heat transfer occurs ,begin emphasis,mostly,end emphasis, through ,begin emphasis,conduction,end emphasis,?

Question

Answer options with 4 options
A.
The Sun transfers heat to Earth.

B.
Beach sand transfers heat to feet.

C.
A microwave oven transfers heat to food.

D.
Warm surface air transfers heat to cool upper air.

Answer 1

B. Beach sand transfers heat to feet.