Which of the following is the best tip for creating a successful cover letter? ( )
选项：

A:Use different paper colors and paper types for your résumé and cover letter to create a strong visual impact.
B:Make activities and outcomes, not yourself, the subject of sentences to reduce overuse of "I."
C:Use a creative letter style to surprise the reader and make a big impact.
D:Keep the focus on your skills and traits through frequent use of "I" statements.