Answer:
A) Diction.
Step-by-step explanation:
Rhetorical devices exemplify tools in linguistics that involves the use of certain structure, sound, or pattern connotatively to inform, persuade or present an argument before the readers. Rhetoric devices are employed with a purpose to evoke a particular response from the readers.
The author of the declaration uses 'diction' which is clearly reflected through the use of particular words 'plundered' or 'destroyed' that are more strong and effective to convey the meaning that how the Englishmen have looted(plundered) America of its resources and 'destroyed' it with a purpose to claim civil rights for them. Diction is introduced in an argument to convey a specific meaning in a more compelling manner. Thus, the answer is 'diction'.