Which of the following is true about the barriers to filtration in the nephron?
a. The basal lamina is an acellular layer located between the capillary endothelium and Bowman's capsule endothelium.
b. Blood cells are not filtered because there are no blood cell transporters in the endothelium of Bowman's capsule.
c. All of the above are true.
d. There are three barriers that exist that contribute to the very selective and very specific process of filtration.
e. Proteins are not filtered because they are simply too large and too positively
charged to pass through all three barriers.