Step 1: Understanding the Concept:
This question tests knowledge of the historical periods of the English language.
Step 2: Detailed Explanation:
The history of the English language is broadly divided into three main periods:
1. Old English (or Anglo-Saxon): from about 450 to 1150.
2. Middle English: from about 1150 to 1500. This period began after the Norman Conquest and saw significant changes in the language, including heavy influence from French.
3. Modern English: from about 1500 to the present. This period is further divided into Early Modern English (c. 1500-1800) and Late Modern English (c. 1800-present).
The timeframe given in the question, AD 1150 – 1500, corresponds directly to the Middle English period.
Step 3: Final Answer:
The period of English from 1150 to 1500 is known as Middle English. Therefore, option (B) is the correct answer.