This question already has an answer here:
When someone asks me, for example, to go with him to the cinema and I want to reply that I can't because I have to go to the doctor's, what should I say?
I'm visiting a doctor
I'm going to visit a doctor
I will visit a doctor..
My question is when we should use
- be going to
- be + present continuous
- Will ?
Which one is the most correct option in the provided context?