Concept:Packaging is the activity that both protects a product and improves its appearance.
Explanation:Packaging refers to the container or wrapper used for a product.
It protects the product from damage, spoilage, and contamination during storage and transport.
It also improves the product's visual appeal, which attracts customers and helps increase sales.
Advertising only promotes the product, grading sorts by quality, and labelling provides information.
Therefore, packaging is the correct answer.
Answer:D. packaging