In cerebral capillaries with abundant tight junctions, the following measurements were made at the venular end of the capillary: Hydrostatic Pressure of capillary = 20 mm Hg: Hydrostatic Pressure of interstitium =-7 mm Hg Oncotic Pressure of capillary = 30 mm Hg; and Oncotic Pressure of interstitium - 2 mm Hg. From the Starling equation, what is the driving force for fuld movement? A.0-1 mmHg B.15 mmHg C.11 mmHg D.+1 mmHg