Concept:Post-planting operations are all management practices done on cocoa trees after transplanting.Explanation:Rogueing is the removal of diseased, weak, or abnormal cocoa plants from the plantation.Stumping is the cutting back of a cocoa tree to a short stump to promote fresh, healthy regrowth.Mulching is the spreading of dry plant materials around young cocoa trees to conserve soil moisture and control weeds.All three practices are carried out after cocoa seedlings have been planted in the field.Answer:B. I, II and III