There is a relationship between inventors who develop machines, manufacturing, and the need for technical expertise to repair and maintain those intricate systems. Which statement best describes this?

• A. It is unrelated to inventors and manufacturing.
• B. Manufacturing requires no special repair skills.
• C. There is a relationship between inventors, manufacturing, and maintenance; skilled repair is needed.
• D. Maintenance is unnecessary with good design.

Answer: (C)

The main idea is that complex machines link invention, production, and upkeep. When inventors design a device, they create something that will operate in the real world, and manufacturing turns that design into a tangible system. Over the life of that system, it will need repair and ongoing maintenance to stay reliable and perform as intended. This creates an interdependent relationship: clever design and effective manufacturing enable operation, but skilled technicians are essential to diagnose, repair, and maintain the intricate parts. Without that maintenance capacity, even well-made machines can degrade, reducing uptime and increasing costs. That’s why the best description is that there is a relationship between inventors, manufacturing, and maintenance; skilled repair is needed. The other statements don’t fit because maintenance and skilled repair are not optional, and good design does not remove the need for upkeep or for repair expertise.