Energy Changes of Cyclist: X to Y

[Cheesus128]

Sorry for brief formulation but have no time.

Cyclist travels down hill, no pedalling.
Applies breaks at X and stops at Y.

Which energy changes have taken place between X and Y?

A. Kinetic --> internal (Heat) ---> Grav potential
B. Kinetic --> Grav Potential --> Internal heat
C. Grav Potenial --> Internal (heat) ---> Kinetic.
D. Grav Potential --> Kinetic ---> Inetnal Heat

Thank you!

 

[Melgibson]

lol are you using your blackberry during a test?

 

[Cheesus128]

Hahaha no I am just doing a Paper and don't have the marking scheme.
My IGCSE is tomorrow though.
So maybe that's a good idea ;D
Anyway know the answer?

 

[Melgibson]

Ya but i don't think I am suposed to say