internal decay, external invasions, and economic difficulties.
There is no drop-down menu provided, but I can still answer your question. The western Roman Empire finally collapsed due to a combination of internal and external factors. Some of the internal factors include political instability, economic decline, social unrest, and corruption within the government and military. External factors include barbarian invasions, particularly by the Visigoths led by Alaric, Vandals led by Genseric, and Ostrogoths led by Theodoric. These invasions severely weakened the empire's defenses and contributed to its ultimate downfall.
