Question regarding waiting/priority

Hello! I’m learning for my driver’s license and I thought that someone could certainly help me here I’m in the priority chapter and there are some things I don’t really understand! I’ve attached three pictures here. The question is whether I have priority or waiting duty at this intersection if I want to go straight ahead. What I don’t quite understand is this sign under the priority road sign: It shows a left turn, doesn’t mean that the priority road If yes, then the right answers somehow make no sense for me. “I have priority over a left-winger” – I understand, because in this case I am the right-winger and therefore have priority because of the rule of law. “I have priority over a right-winger” – I also understand, since if you look closely, the right-winger has a priority-giving sign. On the next question, why do I have priority over the right-winger? – I also understand, because if you look closely, the right-winger has a priority-giving sign. However, I don’t understand why “because of the priority road rule” is the answer. Wouldn’t it rather be “because of the waiting rule”? Because the right-winger has such a sign. Because the sign under the priority road sign shows that the priority road turns to the left. What if I understood it correctly would think that I would leave the priority road when I went straight ahead. Or is the whole intersection part of the priority road in this case? A Is it so that there is no more priority road where the road after the intersection begins? Do I find somehow quite confusing and I just get a bunch of such questions, I sometimes know how to answer them correctly but only because I already know the questions by heart; But as long as I don’t understand it it doesn’t make any sense… Hope someone can help me! LG