Which of the following statements is NOT correct in terms of language appropriateness in presentation.
选项：

A:If your audience do not have professional knowledge, you’d better paraphrase the technical terms with general terms, or add translation to the technical terms. ;
B:In some formal settings, such as academic presentations, you might want to use more formal words than informal expressions. ;
C:Avoid using any offensive terms in your presentation such as “fat”, “stupid”, etc. ;
D:You may choose formal or informal words in presentation according to your own preference.