Amber and I were going up there ever few weeks just to spend time with her and get Dad a little relief . Its really hard . Watching her learn to walk again , watching a machine breathe for her , but I ' m glad I was there .
Why my their mother had to learn to walk again ?
Pick the best answer from the following options:
A. She may have forgotten how to walk due to Alzheimer 's .
B. None of the above choices .
C. She preferred not to walk and drove instead .
D. She may have to learn to walk after a stroke .


D