You want to continue driving straight ahead. What is correct in this situation?

In this situation, the yellow diamond-shaped sign ahead indicates that you are on a priority road. However, there is a stop line before the intersection, meaning you must first stop at the line, regardless of the priority. You also see a convoy of police vehicles using their special rights, which means they have priority even over vehicles on a priority road. So, the correct actions are to wait at the stop line and allow the convoy to pass. Only after the convoy and when it is safe may you continue. This is why answers 1 (allow the convoy to pass) and 2 (wait at the stop line) are correct. Crossing the junction immediately would be incorrect.