The osmotic concentration of plasma proteins in the venous side of capillaries reduce the amount of interstitial fluid in tissues by inducing:

The osmotic concentration of plasma proteins in the venous side of capillaries helps reduce the amount of interstitial fluid in tissues by inducing: passive H2O diffusion along a concentration gradient.

Explanation:

Osmosis is the diffusion of water through a semipermeable membrane according to the concentration gradient of water across the membrane. Osmosis is a special case of diffusion. Water, like other substances, moves from an area of higher concentration to one of lower concentration.

i think the answer would be d