This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to use the yahoo search engine
Visit the " yahoo " website provided to you in the sources section of this article.
Enter search terms into the " search " box for that related to the content and data you want to find.
Be specific as possible when entering keywords.

Available options: (a). They should be for your favorite search engine. Avoid the " questions " box-that's what yahoo is for.; (b). Anything that will lead you to a site's search page would be considered keywords rather than searches. If you already own yahoo search engines, it's best not to worry about that.; (c). Yahoo searches require specific sites to be relevant to your search. Yahoo searches are usually formatted for best results, but some don't allow search terms.; (d). This can help narrow down your search results and provide you with the exact information you are looking for. For example, if you want to learn about dog grooming methods for a poodle, enter " best methods for grooming a poodle " instead of a basic phrase such as " dog grooming.;
The answer is:
(d).