What does this sign indicate?

What does this sign indicate?
A)The point from which motorway rules apply.
B)That there is a road with four roads.
C)The directions of the various exits at the next roundabout.Correct
The sign in the question indicates the directions of the various exits at the next roundabout. If any inscription appears on a blue background, it indicates that the exit leads to a motorway or dual carriageway.
The sign for answer b), from which motorway rules apply, is the following: