Final answer:
The only sentence that is punctuated correctly is 'Edward once said that his favorite Dickens novel was “Great Expectations.”' as it correctly uses quotation marks to denote the title of the novel.
Step-by-step explanation:
The sentence punctuated correctly is: Edward once said that his favorite Dickens novel was “Great Expectations.” This sentence uses quotation marks appropriately to indicate the title of the novel, which is something Edward is directly referring to. It's essential when quoting something directly, to set off the quoted material from the signal phrase with a comma. Quotation marks help highlight the beginning and end of a quotation, setting it apart from your own words and thereby preventing plagiarism.
On the other hand, titles of shorter works, like articles, poems, and songs, should be presented in quotation marks, while titles of longer works like novels, plays, or newspapers, do not require quotation marks when mentioned in a sentence. Thus, the titles 'The Wall Street Journal' and 'Cooking' magazine should be italicized instead. The phrase 'Washington’s Farewell Speech' also does not require quotation marks as it is the title of a speech, not a direct quote.