Arrange the Symptoms in the Proper Order to Describe the Pathophysiology

Arrange the symptoms in the proper order to describe the pathophysiology of varicose veins (A-D). (Enter the number of each step in the proper sequence; do not use commas or spaces.)
A) Damaged valves
B) Pressure on the valves
C) Blood stagnation and pooling in the lower extremities
D) Compromised venous return