Answer:
The correct answer to the question: Which sentence best describes both Covey and Freeland in "Narrative of the Life of Frederick Douglass", would be, indeed: Both men are Douglass´s superiors for a time.
Explanation:
"Narrative of the Life of Frederick Douglass" is an autobiographical book written by Frederick Douglass, a former slave, which was published in 1845. Aside from telling his own story as a slave, Douglass also intends the book to become a treatise on slavery and the need for abolition.
Around chapter 8, when Douglass has become older and he has lost his original owners, he is sent to live with Thomas Auld, who becomes his new and a really cruel, master. For a year, Auld lends Douglass to Mr. Covey, known as the "negro-breaker" who indeed becomes even crueler than Auld every could be. When the contract between Auld and Covey for Douglass´s services ends, Auld sends Douglass to live and work for Freeland, who is described by Douglass as being less cruel and less mean than any of the others had ever been. This is why the answer is the last one. Both men were Douglass´s superiors for a time.