The Best Way to Search for Evidence-Based Guidelines in Electronic

The best way to search for evidence-based guidelines in electronic databases is to do which of the following?

A) Under Options, use the Publication Type or Type of Article limit.
B) In the search box enter both the topic and "guideline."
C) In one search box enter the topic and in another enter in quotes the name of a professional association that might have produced a guideline on that topic, then combine the two searches.
D) Enter the topic in the search box, then sort through the citations retrieved to identify evidence-based guidelines.