The tone or attitude means the writes personality expressed through word
the answer is D. Some of the world’s highest waterfalls can be found in three countries: Venezuela, South Africa, and Peru.
a colon in a sentence means the auther can end the sentence with a period if he wanted and the sentence would still be correct.
in this case the sentence could be, "Some of the world’s highest waterfalls can be found in three countries."
this still looks and sounds correct and is a fully functioning sentence.
The medium of Interview with Marielle Tsukamoto affect the structure of the main ideas and supporting sentences. The medium used for the excerpt is an interview. The structure of the response was less formal than an essay. I hope this answer helped you.
Conflict....resolution is the answer