@Blue ***
ask the place you’re going to apply. You should be not lazy to provide them MORE proof than what they ask for because after all, the staff wants to go through the checklist for each candidate and get on with their life.
If you provide them enough proof, they’ll appreciate your efforts and also more likely to approve you.
Don’t forget, once you get this, you don’t need to do a single visa applucation for 5 years straight.