Answer:
The correct answer will be- the pericycle
Step-by-step explanation:
The pericycle is a primary tissue present in the roots of the plants which is involved in the root development, secondary root growth and the lateral root initiation.
The pericycle in the monocots from the roots but in dicots forms the cork cambium and vascular cambium along with the root development.
Since the pericycle acts to control the meristematic activity in plant roots therefore, the pericycle is the correct answer.