The diagram shows a model of a nephron and its associated blood vessels.
This model has been criticised for being a poor representation of a nephron. Which of the following statements explain(s) this?
(i) The rubber tubing at B is not split up into numerous branches like the capillary network of the glomerulus.
(ii) The rubber tubing at B should be continuous and not contain small pores.
(iii) The stem of the thistle funnel (E) is not coiled to represent the convoluted tubules of the nephron.
(A) (i) only
(B) (i) and (iii) only
(C) (ii) and (iii) only
