I know the basics of rotational motion but this question just confused everything:
The answer to the question is A. But why?
If first, I treated both the disks as two particles, they would both have to accelerate down the incline at $gsin\theta$. Thus, going back to the rigid object, the tangential velocity can't remain constant at the first place
If both the objects started from rest and ended at the end of the incline at the same time, shouldn't they have the same tangential acceleration and thus answer should be B?