Ultra-filtration process at the Bowman’s capsule is facilitated by

• A.the volume of water in the blood
• B.the high concentration of urea in the blood of the Bowman’s capsule
• C.the differential blood pressure between the glomerulus and the Bowman’s capsule
• D.the differential blood volume between the glomerulus and the Bowman’s capsule
• E.heavy weight of the urea, water, glucose and amino acids in the Bowman’s capsule.