Answer:
The correct order of tribal dominance, according to their influence, is Anglo-Saxons, Celts and Britons, and Romans.
Step-by-step explanation:
Anglo-Saxons were the ancestors of the English people since they were important for the development of the English culture as regards the political, economic, social, and even in the linguistic field.
Even though England was under Roman rule for 400 years, Romans failed to latinize the English people. During their ruling, the Celts enjoy the pax Romana but when the Romans left (to defend their empire) the Celts had lost their fighting capacities and were easily defeated by the Anglo-Saxons.
Celts and Britons were invaded, subdued, and also expelled by the Anglo-Saxons.