Which of the following is not recommended when you prepare text slides？

Which of the following is not recommended when you prepare text slides？
A.Use all capital letters to emphasize a long sentence.
B.Choose a typeface that is simple and easy to reaD.C.Avoid a lot of different colors.
D.Use a contrasting color or bold print to emphasize a word or phrase.
正确答案：Use all capital letters to emphasize a long sentence.