Final answer:
Customer needs and requirements are closely related, with needs representing broader objectives and requirements being specific criteria to meet those needs in product development.
Step-by-step explanation:
The correct sentence about links in the requirements chain is that Customer needs and Requirements are related to each other. Customer needs usually refer to the broader objectives or problems that a product or service should address, while requirements are more specific instructions or criteria that a solution must meet to satisfy customer needs. Understanding both is critical in developing a product that meets market expectations and adheres to technical and business feasibility.