Where are the options to choose from to answer this question?
The intended meaning is to show how the speaker thinks that the colonists are being unfairly treated by the British government.
Spelling can impact the overall effect of a piece of writing because it effects the formality of the writings. If many words are spelled incorrectly it makes the writing hard to read.
The writer can write the highlights differently or draw attention to them. Examples are adding more details, capitalizing, punctuation, and secluding it form minor details. Hope this helps! : )