During an assessment of an older adult, the nurse should expect to notice which finding as a normal physiologic change associated with the aging process?

A. Atrophy of calf veins: Vein atrophy is not a normal aging process, although venous insufficiency is common due to other causes. B. Narrowing of the inferior vena cava: This is not a typical age-related change. C. Peripheral blood vessels growing more rigid: Arteriosclerosis (hardening of the arteries) is common with aging and leads to increased systolic blood pressure. D. Hormonal changes causing vasodilation: Aging tends to cause vascular rigidity, not vasodilation, and is more likely to lead to hypertension.