<span>The answer is letter D. Rome fell <span>regardless of the strength of the emperors because the Roman army was unable to hold back barbarian invasions from the south and west.There were a string of military losses that Rome sustained when the barbarian groups, like the Goths, had taken over beyond the Empire’s borders. In 476, Odoacer, a Germanic leader, revolted and dethroned Emperor Romulus Augustulus, which marked a deathblow to the Empire of Rome. Due to this reason, Roman Emperors no longer lead Italy since that time in history. </span></span>