A vehicle travelling inside a roundabout. Must it yield to a vehicle wishing to enter from the right?

A vehicle travelling inside a roundabout. Must it yield to a vehicle wishing to enter from the right?
A)Yes, when there are no priority signs.
B)Yes, because the entering vehicle has priority.
C)No, because it has right of way.Correct
At intersections where there is no sign regulating right of way, we must yield to vehicles approaching from the right.
This rule applies at all times, except in the following cases:
- Vehicles travelling on a paved road have right of way over those coming from an unpaved road. (Image 1)
- Vehicles travelling on rails, such as trams, have priority over all other road users. (Image 2)
- Vehicles already circulating inside a roundabout have priority over those intending to enter it. (Question image)
- Vehicles travelling on a motorway or dual carriageway have right of way over those intending to join it. (Image 3)