Describe Platelets and Their Origin

Describe platelets and their origin.

A) Platelets are derived by lymphoid stem cells that divide into lymphocytes and in the process shed some cytoplasmic fragments.
B) Platelets are the remnants of the reticulocyte organelles during the maturation of a reticulocyte into a red blood cell.
C) Platelets are precursor cells to the myeloid and lymphoid stem cells.
D) Platelets are immature red blood cells.
E) Platelets are cell fragments that develop from megakaryocytes.