What are TWO reasons why the Roman Empire turned against each other and what was the primary reason for the fall of the Roman Empire? NOTE : Please make this a paragraph, and not just a statement. Thank you so much!

The Roman Empire became less stable over the course of the Third to Fifth centuries CE. Historians point to internal divisions as well as repeated invasions from tribes such as the Huns and the Visigoths as reasons why the Empire fell. The fall of the Western Roman Empire occurred in 476 CE.The main reason for the collapse of Rome was caused by poor leadership, natural disasters, and foreign invasions. Poor leadership is the main reason, and all the other reasons back track to poor leadership.

the answers are a b and d