Hello, please answer :

A metal sphere of radius +5 cm is charged so that the potential on its surface is 100 V (relative to infinity). Which of the following graphs correctly represents the electric potential as a function of the distance from the center of the sphere?

O 100 V Y 50 V-- 5 cm 10 cm Distance O Z 100 V - - 50 V - - - - 5 cm 10 cm Distance O 100 V W 50 V --. 25 V -- - 5 cm 10 cm Distance O 100 V X 50 V - - 25 V - - 5 cm 10 cm Distance