Which of the Following Statements Regarding Strategies to Locate Relevant

Which of the following statements regarding strategies to locate relevant authority is true?

A) Novice researchers tend to examine fewer materials during the research process than experienced researchers.
B) In an electronic tax service, keyword searching allows the researcher to combine words and phrases to target the search.
C) Keyword searches should be defined as narrowly as possible to maximize efficiencies in the search process.
D) All of these choices are true statements.