Refer to the given diagrammatic representation of a Biosphere reserve. Select the incorrect statement regarding X, Y and Z.(i) X is devoted to strict protection of wildlife and no human activity is allowed in this zone.(ii) In Y, only limited human activity (compatible with conservation) is allowed.(iii) In Z, commercial exploitation of natural resources is allowed.(iv) Tourism is allowed upto Z zone only.(v) Zone Y helps to maintain the lifestyle of the tribal people living in the area.

• A. (iii), (iv) and (v) only
• B. (ii), (iii) and (v) only
• C. (i), (iii) and (iv) only
• D. (ii), (iii) and (iv) only