Read the following sentence:
the story's premise was weak because the plot was a joke and the characters
struck a false note.

which word or phrase most clearly makes the tone inappropriate for a class presentation?

a. false note
b. weak
c. story's premise
d. joke

The correct answer is the following: option D. The use of the word "joke"is the one that most clearly makes the tone of the sentence inappropriate for a class presentation. When formally writing an essay or a story for a class it is important to give a good impression through your writing. To do so it is recommended to use a more formal speech than the one you would commonly used when speaking to friends or family members. That is why the use of slang or colloquial terms such as "joke"  is seen as an inappropriate tone for a class presentation.

folding him safely under her wing