Two uniform solid disks, Disk A and Disk B, are made of the same material and have the same thickness. Disk A has twice the radius of Disk B. If both disks rotate about their central axes with the same angular speed ω, which statement correctly compares their rotational kinetic energies KA and KB?
a) KA=4KB
b) KA=8KB
c) KA=16KB
d) KA=2KB