Explain why an author might choose precise words over vague words?

The missionaries who appear in the novel are colonists from a) britain b) portugal c) spain d) italy

1. in the bold portion of the narrative, the author tries to use a flashback to develop tension. however, the flashback does not create tension. rewrite the flashback scene so it develops tension right at the beginning of the story. (15 points)

Which type of rhetoric is used in this sentence? while i'm certain some will disagree with what i'm about to say, i respectfully ask them to listen to the evidence i will provide to support my claim