Sirolimus,a Relatively New Immunosuppressant,is Especially Helpful Following Kidney Transplants Because

Sirolimus,a relatively new immunosuppressant,is especially helpful following kidney transplants because

A) it causes sodium retention
B) it increases renin release from the kidneys
C) it does not reduce glomerular filtration and other aspects of kidney function
D) all the above are true
E) none of the above are true