Choose correct statement for cytokine and mark correct option:

(i) It is a simple gaseous PGR.

(ii) It synthesized in large amounts by tissues undergoing senescence and ripening fruits.

(iii) Influences of it on plants include horizontal growth of seedling, swelling of the axis and apical hook formation in dicot seedlings.

(iv) It promotes senescence and abscission of plant organs especially of leaves and flowers.

(v) It synthesized in regions where rapid cell division occurs, for example, root apices, developing shoot buds, young fruits, etc.

(vi) It helps to produce new leaves, chloroplasts in leaves, lateral shoot growth and adventitious shoot formation.

(vii) It helps overcome the apical dominance.

(viii) They promote nutrient mobilization which helps in the delay of leaf senescence.