A 52-year-old woman with no major medical problems takes a long airplane flight across the Pacific Ocean. Upon arrival at Sydney's Kingsford Smith airport following the flight from Los Angeles, she cannot put her shoes back on. There is no pain or tenderness. Which of the following is the most likely explanation for this phenomenon?
A.
Activation of Hageman factor has led to bradykinin production.
B.
A lot of drinks were served in the first class section.
C.
Femoral vein thrombosis developed.
D.
A cellulitis developed in her legs.
E.
Venous hydrostatic pressure became increased.