I believe the correct answer is B) diction, because diction is the choice of words. So, the more precise the words which the author uses are, the more precise and increased will the text be.
<span>Proper adjectives have their initial letter capitalised,
for example American - derived from a proper noun America - or Victorian - derived from (queen) Victoria.
Common adjectives, on the contrary, don't have </span><span>their initial letter capitalised</span>, for example green, empty, colourful. Just remember that "common adjective" is not a scientific term used by linguists, it is informal.
Definition of Flabbergasted
overwhelmed by amazement
Although Ted expected nice lodging on the cruise, he was flabbergasted when the steward escorted him to a two-bedroom suite.
"It shows that Victor is isolating himself from society." (APEX)
