Read the following context and choose the best option to answer the question.
Context: I am so very exhausted . With that said there are still a few things to do before bed so I will give you an update . Wednesday I had my PT evaluation and it went well . I was discharged and told that I would need to continue my exercises to strengthen my core . It was very important for me to strengthen my core and where my 8th of an inch heel lift to keep the problem from reoccurring .
Question: What may be the reason for them being discharged from PT ?
Options: 
- Because it was too expensive for them .
 - Because they were strong enough to continue exercises at home .
 - None of the above choices .
 - Because their insurance only covered so many visits .


Because they were strong enough to continue exercises at home .