How many of the given statements are correct w.r.t meristmatic tissues?A. The meristems which occur at the tips of roots and shoots are primary meristems.B. Some cells ‘left behind’ from the shoot apical meristem constitutes the accessory bud.C. Cork cambium is responsible for producing secondary tissues.D. The process of formation of structurally and functionally specialised cells is known as dedifferentiation.E. The intercalary meristem occurs in grasses and regenerates parts removed by grazing herbivore.F. Interfascicular cambium and fascicular vascular cambium are absent in woody plant axis.