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

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