How many among the following statements are incorrect ?
(a) Plant growth is defined as reversible increase in size or dry weight.
(b) Ethylene promotes fruit ripening and leaf senescence.
(c) Process by which cell lose their ability to divide and acquire specific functions is called differentiation.
(d) Abscisic acid promotes stomatal opening during water stress.
(e) Gibberellin induces bolting in rosette plants.