The correct option is D Cambium
A meristematic tissue has the immense potential for division. They have a nucleus and they are full of cytoplasm. Thus, meristematic tissues are actively dividing cells. Cambium is composed of lateral meristematic cells. Hence, they show active growth. Xylem, phloem and sclerenchyma are made up of permanent tissue which is specialised are incapable of dividing.
Thus, the correct answer is option C.