A student takes a beginning golfing class and is asked to conduct a search
on ways to improve his stroke. The student, however, wants to avoid results
that explain the causes of the medical condition known as a stroke.
Which Boolean search would return the most useful results?
A. Using quotation marks around the single word "stroke"
B. Using NOT before a keyword: golf NOT stroke
C. Using OR between two key words: golf OR stroke
D. Using AND between the search terms: golf AND stroke