Porters who carry heavy luggage always have a long piece of cloth wiith them. Before carrying the load o their heads they fold the cloth in the shape of a round disc and place in on their heads. By doing this they

Options

A. decrease the thrust of the luggage
B. save their heads from possible injury
C. increase the area of contact of the load of luggage with their head
D. decrease the force exerted by the load of luggage on the head

Answer

C

Explanation

increase the area of contact of the load of luggage with their head