Cells of meristematci tissue lack ______.
           

Correct option is B

Cells of meristematic tissue lack vacuoles.
 Cells of meristematic tissue are very active, they have dense cytoplasm, thin cellulose walls and prominent nuclei.
 Meristematic cells have a prominent nucleus and a dense cytoplasm but lack a vacuole, this is so because meristematic cells have an ability to divide and form new cell.
 Vacuoles have a function of storing food and other nutrients that a cell might need to survive. But there is no point in storing food and other nutrients when the cell has to divide.