Liz needs to find information on quasars in the Milky Way but she's getting too many results about quasars in the Andromeda galaxy. Which group of search terms would solve this issue for Liz?

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This question tests how to refine search results by excluding an unwanted term. Using the NOT operator lets you filter out items that mention something you don’t want to see.

If you search for quasars NOT Andromeda, the results must include quasars but cannot mention Andromeda. That directly targets the issue of getting too many Andromeda-related results, helping shift the results away from Andromeda and toward other quasars, which makes it easier to find information about quasars in the Milky Way context.

The other options either keep Andromeda in the mix or don’t specifically filter it out, so they wouldn’t reduce the unwanted results as effectively.