May Is 89 Years of Age

May is 89 years of age.Her heart is weak,so she spends most of her time lying in bed or sitting in a chair.Although she takes medication for hypertension,she has been unable to keep her blood pressure in the normal range.Her diet consists mainly of apples,leafy vegetables,gelatin,toast,butter,tea,and chocolate candy.May's lower legs and feet and swollen.Based on this information,the swelling is probably the result of a(an) ________.

A) dietary fiber deficiency
B) chronic bladder infection
C) starvation diet
D) PKU