Answer:
The answer to the question: Who must yield at T- intersections, would be: Those who are entering from the finishing road into the main road that forms the horizontal part of the T. Therefore, those who are entering from the intersection into the main road traffic must yield to the cars on the cross street.
Step-by-step explanation:
Usually, or in general, T intersections on major highways should have either YIELD, or STOP signs at the very mouth of the intersection with the cross street to let drivers know that it is they who must yield the right-of-way, to those on the cross street. However, when that is not the case, drivers should know that cars who approach the intersecting road towards the cross road, must yield to those on the cross road, always.