Final answer:
The correct sequence of product development phases is idea generation, concept development, product design, product testing, and product introduction. Each phase builds upon the previous one and may involve iterations to refine the design based on testing and evaluation. Thus, the option D is the correct answer.
Step-by-step explanation:
The correct sequence of phases in product development from start to finish is: idea generation, concept development, product design, product testing, and product introduction. The process begins with idea generation, which is the creative determination of new product concepts. Following that is concept development, where ideas are fleshed out into more detailed and actionable plans. Then comes product design, where those concepts are transformed into detailed designs, often requiring careful decision-making and refinement to meet constraints and criteria. Next, in the product testing phase, prototypes are built, tested, and evaluated to ascertain the strengths and weaknesses of the design, often leading to further refinements. Finally, the product introduction phase marks the launch of the finished product into the market.