The pressure
A. Drop along large veins is similar to that along large arteries.
B. Drop across the hepatic portal bed is similar to that across the splenic vascular bed.
C. In the hepatic portal vein exceeds that in the inferior vena cava.
D. Drop across the vascular bed in the foot is greater when a subject is in the vertical than when he is in the horizontal position.
E. In foot veins is lower when walking than when standing still.
The correct answer is E. In foot veins is lower when walking than when standing still.
This is due to the muscle pump effect, where contractions of leg muscles during walking compress veins and push blood upwards towards the heart, reducing pressure in the foot veins.