What is the author's purpose in writing this article? Choose all that apply. A. to highlight the critical role of museums in saving languages
B. to call attention to the languages in danger of dying out
C. to discuss the importance of preserving languages
D. to explain why certain languages are going extinct
E. to convince readers to learn another language

the correct answer is a. how to make proposal that works.

indeed, the register is quite formal and the tone is especially objective as it avoids the use of the first and second person singular (i, you) and opts instead for the third person plural which is more impersonal and focuses on the data and the argument that is being developed by the author. the formality adds the impression of respectability to the work and the impersonality adds objectivity to it.