In His Speech About American Loyalty and Patriotism, Mike Thought

In his speech about American loyalty and patriotism, Mike thought he had really reached everyone in his audience. However, after receiving classmates' written critiques of his speech, it seems as thoughhisdelivery and content offended a couple of international students in his class. Which of the following statements BEST explains this situation?

A) Mike's presentation likely contained an ethnocentric approach, one which has the potential to offend members of other cultures.
B) Mike should have used a manuscript delivery rather than an extemporaneous one, so that he didn't run the risk of offending anyone in the audience.
C) Mike didn't do anything wrong, because members of minority cultures should adapt to the values and behaviors of the dominant culture when they travel abroad.
D) Mike didn't do anything wrong, because you just can't anticipate and cater to every single member of your audience.