As blood moves from the arterial end to the venous end of a capillary, net filtration pressure:

a.increases, as blood hydrostatic pressure rises

b.decreases, as blood hydrostatic pressure rises

c.decreases, as blood colloid osmotic pressure decreases

d.decreases, as blood hydrostatic pressure decreases

e.remains the same, as rises in blood osmotic pressure are offset by declines in tissue osmotic pressure