Question

investigating careers
electronic
repairs
there are many different career paths in electronic repairs. some work on individual problems, others get hired by businesses to fix their tech issues.
taking computer programming and technology classes in high school or at a vocational school can be a good place to start. its important to stay updated on the latest tech and electronics because older systems might need to be replaced as they become outdated.
why is it important to be good with technology in this field?
to allow you to create your own electronic devices from scratch
to ensure you can handle both new and outdated systems
to help you design the layout and decor of an electronics store

Explanation:

The text mentions that it's important to stay updated on the latest tech and electronics because older systems might need to be replaced as they become outdated. This implies handling both new and old systems. Creating devices from scratch isn't the main focus here (the focus is on repairs), and designing store layout/decor is unrelated to the core of electronic repairs which is about handling systems (new and old).

Answer:

to ensure you can handle both new and outdated systems