Answer: Paul is upset that his father calls him "my boy" instead of "my son."
Step-by-step explanation:
''The Land'' is a novel published in 2001 and written by Mildred D. Taylor where Paul-Edward Logan is the main character of the story. He is multi-racial and he is a son of white landowner, Edward Logan.
Paul and his sister Cassie are multi-racial because of the affair that their father had with a slave that was half Native American and half black, Deborah Logan. Because of their situation there is a lot of questioning in this novel.
Paul was working for his father and he was upset many times because of him and in Part 4 we can see that he was upset because he called him my boy. Later on, Paul and Mitchell escaped from Edward Logan.