Answer:
B. The essay would have a more informal tone and use personal examples to make its points.
what's your question though
Assonance refers to the repetition of the same vowel in neighboring words. Having that in mind, the correct answer should be twice and miles.
As you can see, both of these words have the vowel i which is read as <em>eye</em> in both words. The other options do not have such a repetition of the same vowel which is why they are incorrect.
2 the volcano erupted in the early afternoon of August 24,A.D.79, and the residents of Pompeii,four miles away,were able to see and hear the explosion,which sent a huge black cloud into the sky