When "Putting Tests to the Test" and Researching the Validity

Multiple Choice

When "putting tests to the test" and researching the validity of a particular instrument for a particular purpose,test users

A) will typically consult multiple issues of popular magazines.
B) may need to research which combination of tests best suits a particular purpose.
C) can be satisfied they are using the right instrument if the validity coefficient found is satisfactorily high.
D) All of these