Regarding the assembly of the inner ring of a single-row deep groove ball bearing on the shaft, it should be: a) Free to allow the inner ring of th...

Regarding the assembly of the inner ring of a single-row deep groove ball bearing on the shaft, it should be:
a) Free to allow the inner ring of the bearing to move with the load.
b) Free to allow the bearing to rotate relative to the shaft.
c) Forced to prevent the balls from moving.
d) Forced to prevent the inner ring from moving relative to the shaft.
e) Half-pressed to avoid forcing the ring too much.
a) A
b) B
c) C
d) D
e) E