GFR will be increased if:
Starling's forces acting at the glomerulus are as follows : (1) Factors oring filtration - Glomerular capillary hydrostatic pressure - If it decreases, GFR would decrease. (Option D) Bowman's capsule oncotic pressure (2) Factors opposing filtration - Plasma colloid oncotic pressure - If this pressure decreases, GFR would increase. Bowman's capsule hydrostatic pressure - (option A) If this pressure increases, GFR would decrease.