Final answer:
The true conquest of Britain occurred in 1066 AD when William the Conqueror defeated King Harold II at the Battle of Hastings, leading to Norman rule over England.
Step-by-step explanation:
The True Conquest of Britain
The term conquest often refers to the act of gaining control over a territory through force. The true conquest of Britain occurred in 1066 AD with the Norman invasion, led by William the Conqueror. This pivotal moment in history is marked by the Battle of Hastings, which resulted in the defeat of the Anglo-Saxon King Harold II.
Following this victory, William I established Norman rule over England, which would impact the country's culture, language, and governance for centuries. Thus, option a is the correct answer: The true conquest happened in 1066 AD with the invasion of William the Conqueror (William I). The Battle of Hastings took place, resulting in the defeat of King Harold II. Britain became a Norman territory.