When Looking for Research Articles on a Particular Research Topic

When looking for research articles on a particular research topic, why might you want to avoid a general "brute force" search involving just the keywords?

A) The article database will not return a comprehensive list of related articles.
B) The most widely read media article on the topic is comprehensive enough, so no further search is needed.
C) There are more efficient ways of obtaining important articles within a topic, such as using advanced search functions.
D) The "brute force" method is inefficient because important articles can always be obtained more quickly by asking your peers for them.