Refer to the given figure and select the incorrect statement(s).(i) The part labelled P is found in plant cell only.(ii) The part labelled Q is cell wall, which provides rigidity to a plant cell.(iii) The part labelled R is the controlling centre.(iv) The part labelled R gets its shape from part labelled P.

• A. (iv) only
• B. (i) and (iv) only
• C. Reversible 
• D. (iii) only