Which vehicle will have right of way?

A)The green vehicle.Correct
B)The blue vehicle.
In the absence of a sign, the general priority rule applies: yield to the right.
In this case the green vehicle has priority. Having a stop line on the carriageway does not change the general priority rule; it simply indicates the place where we must stop if we are required to do so.
In this case the green vehicle has priority. Having a stop line on the carriageway does not change the general priority rule; it simply indicates the place where we must stop if we are required to do so.