All of the Guidelines Below Should Be Followed in a Good

All of the guidelines below should be followed in a good title of an empirical article, EXCEPT:

A) Avoid asking a question that has a 'yes' or 'no' answer.
B) Mention in the title every variable that was used in the study.
C) Name in the article title the theory the study is testing.
D) Make the title specific and relatively short.