One end of a light string 4 m in length is fixed to a point on a smooth wall and the other end fastened to a point on the surface of a smooth sphere of diameter 2.25 m and of weight 100 kg. The reaction between the sphere and the wall of the arrangement made is___.

A)
102.5 kg
B)
105.5 kg
C)
108.5 kg
D)
110 kg

Correct Answer :   102.5 kg