Question

how can you improve your keyword search results?
by using limiters to narrow and focus your keyword search
by making your keyword search as broad as possible
by using only hard copies of research materials
by relying on one search engine’s results so you don’t get too many

Explanation:

To improve keyword search results, using limiters (like date, type, etc.) narrows and focuses the search, filtering out irrelevant info. Making it broad gives too many results, hard copies limit access, and relying on one engine misses diverse sources. So the correct option is the first one.

Answer:

A. by using limiters to narrow and focus your keyword search