Final answer:
Customized product design services are best described as 'Quasi-Manufacturing' since they involve customizing products to client specifications, akin to manufacturing but on a smaller scale. Health care, consulting, and restaurant services do not fit this category as they do not create unique physical products.
Step-by-step explanation:
The term Quasi-Manufacturing services refer to those that involve significant customization and creation of specialized products for customers, but not in a mass production setting. Among the options given, customized product design services best fits this description since it involves tailoring products to meet specific client needs, much like manufacturing, but without actually producing goods on a large scale.
Health care services, consulting services, and restaurant services are not considered Quasi-Manufacturing because they do not typically involve creating unique physical products for individual customers. Instead, these services focus on providing expert advice, care, and food respectively, which fall squarely in the service sector.
According to economic sectors, someone working as a software developer would be in the quaternary sector, which is a subset of the tertiary sector that focuses on knowledge-based services like information technology. As for services like plumbing, journalism, or marketing, they indeed utilize some physical resources but are primarily part of the service industry, rather than heavy manufacturing.