In that case, you must answer 'Yes' to all three questions in that section.
You can include a LOE, but I suggest you also fill the box in that section in this way:
Question 2a: Yes, currently out-of-status. SOWP was valid until XX date
Question 2b: Yes. Had a previous refusal for a study permit. Applied on XX date. Refusal letter XXXXXXX
Question 2c: Yes, previously applied to enter Canada