MrAnd MrsSmith Are Both 75 Years Old and Are Seeing Their

Mr.and Mrs.Smith are both 75 years old and are seeing their nurse practitioner for their annual checkups.Mrs.Smith wonders why they each have trouble digesting different foods.It is inconvenient for her to fix different meals that they both can tolerate.The nurse practitioner explains that:

A) Men have more difficulty digesting vegetables.
B) Women have more difficulty digesting dairy products.
C) Men and women have different enzymes in their gastrointestinal tracts.
D) Organ systems progress differently for each person regardless of age.