The correct answer is: A. to keep it away from hot compressor which is nearer to the bottom.
The freezer is fitted near the top of the refrigerator to keep it away from the hot compressor, which is located at the bottom of the refrigerator. The compressor is responsible for circulating the refrigerant throughout the refrigerator, and it generates a lot of heat. If the freezer were located near the compressor, the food in the freezer would be exposed to this heat, which would cause it to spoil more quickly.
Option B is incorrect because the freezer is not fitted near the top of the refrigerator for convenience. In fact, it can be inconvenient to reach food that is stored in the freezer at the top of the refrigerator.
Option C is incorrect because the freezer is not fitted near the top of the refrigerator to facilitate convection currents. Convection currents are caused by the difference in temperature between the air at the top and bottom of the refrigerator. The warm air rises to the top of the refrigerator, while the cold air sinks to the bottom. This creates a circulation of air that helps to keep the food in the refrigerator at a consistent temperature.
Option D is incorrect because the freezer is not fitted near the top of the refrigerator to minimize power consumption. The location of the freezer does not affect the amount of power that the refrigerator consumes.