Tina is a hard-working sales clerk in a busy department store. She has stood completely still behind the check-out counter for an 8-hour shift. At the end of Tina's shift, she finds that she feels somewhat dizzy and guesses that her blood pressure is quite low. When Tina gets home she also notices that her ankles are swollen. What physiological issue is most likely to blame in this scenario?
A. High hydrostatic pressure in lower leg capillaries
B. Reactive hyperemia to lower leg tissues
C. High osmotic pressure in her lower leg capillaries
D. Lymphatic blockage in her lower legs
E. None of these, the swelling is unrelated to cardiovascular issues
Answer: A
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