A Solid Sphere of Mass 4 $\degree$ ,And Rolls to the Bottom

Multiple Choice

A solid sphere of mass 4.0 kg and radius 0.12 m starts from rest at the top of a ramp inclined 15 $\degree$ ,and rolls to the bottom.The upper end of the ramp is 1.2 m higher than the lower end.What is the linear speed of the sphere when it reaches the bottom of the ramp? (Note: I = 0.4MR² for a solid sphere and g = 9.8 m/s²)

A) 4.7 m/s
B) 4.1 m/s
C) 3.4 m/s
D) 2.4 m/s