I need this answered as soon as possible please!

A hollow sphere of mass 4.0 kg and radius 0.12 m starts from rest at the top of a ramp rolls to the bottom. The upper end of the ramp is 1.5 m higher than the lower end. What is the velocity of the sphere when it reaches the bottom? O 4.2 m/s 4.7 m/s O 5.7 m/s O 5.4 m/s