Identify the decreasing order of radius of gyration of following bodies of same radius
(I) About diameter of circular ring
(II) About diameter of circular plate
(III) About tangent of circular ring `bot^(r)` to its plane
(IV) About tangent of circular plate in its plane
A. `III,IV,II,I`
B. `IV,III,I,II`
C. `IV,III,II,I`
D. `III,IV,I,II`