The Boolean operator that is most useful to refine the internet search is given in option (D). Therefore, "AND" is the correct narrow-down search indicator.
A symbolic logic technique created by English mathematician George Boole in the 19th century serves as the foundation for boolean searching.
With a boolean search, you can combine words and phrases to narrow, broaden, or define your search by utilizing the Boolean operators AND, OR, and NOT. These are the three fundamental Boolean operators:
A collection of commands known as boolean may be used in practically any database, online store, or search engine.
Boolean operators are straightforward words (AND, OR, NOT, or AND NOT) that are used as conjunctions in searches to combine or exclude keywords, producing more specialized and useful results.
Through the elimination of irrelevant hits that must be scanned before being discarded, time and effort should be saved.
Therefore, from the given options, "AND" is the most useful Boolean operator.
Check out the link below to learn more about Boolean operators;
https://brainly.com/question/26706016
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