Final answer:
The statement about marketing involving several stages including market analysis and packaging design is True. Marketing encompasses the diverse processes necessary for understanding consumer demand and delivering products to meet that demand.
Step-by-step explanation:
Marketing involves numerous stages in the lifecycle of a product. This process begins with market analysis, which involves studying what people want to buy, continues with the design and development of the product, and extends to aspects like packaging and advertising strategy. The question 'Marketing involves a number of stages, from studying what people want to buy to designing a product's packaging.' can be affirmed as True because it encapsulates the various steps companies take to understand and influence consumer behavior, and to ensure their products meet the needs and preferences of their target market.