Answer: COHERENCE.
Explanation: In a coherent paragraph, each sentence relates clearly to the topic sentence or controlling idea, but there is more to coherence than this. If a paragraph is coherent, each sentence flows smoothly into the next without obvious shifts or jumps.
B. Because he has to stay away from his family, which is painful to him
C. Because he is an artist at heart but has to work as a salesman
D. Because he has to travel a lot and undertake mundane tasks
D.because he has to travel a lot and undertake mundane tasks
B.Boxer does more work than the other animals, and always says "I will work harder."
C.Boxer appeals to Napoleon to reduce the amount of work they need to do.
D.Boxer tells the other animals not to worry because he can do as much work as all of them.