Since el campo is the countryside or the field then you can eliminate C and D since those are in the city, you would then eliminate B since its a park. You would be left with A since the mountains can be found on the countryside.
For me I think she should have enough rest to be able to regain her lost strength. She might feel sad but after she has regained her strength, she will no longer have to stay at home for hours. She could even go out and come back the time she wants to.
