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

Narrowing of the inferior vena cava, causing low blood flow and increases in venous pressure resulting in varicosities

Progressive atrophy of the intramuscular calf veins, causing venous insufficiency

Peripheral blood vessels growing more rigid with age, producing a rise in systolic blood pressure

Hormonal changes causing vasodilation and a resulting drop in blood pressure