The given figure shows the region of root tips with their region marked as A, B and C. Choose the option which shows the correct labelling of A, B and C. 

A. A - Zone of elongation, B - Zone of meiosis, C - Zone of mitosis.

B. A - Zone of maturation, B - Zone of meristematic activity, C - Zone of elongation.

C. A - Zone of mitosis, B - Zone of elongation, C - Zone of root cap.

D. A - Region of maturation, B - Region of elongation, C - Zone of meristematic activity.