I would say the answer is C
In fiction, you would like to give variety to your word choices. In formal business or academic writing, You want to prevent ambiguity and so may use the same word again and again to make your meaning clear. For example "contract" might be used repeatedly rather than along with some synonyms for it.
to better explain some of the ideas in the main text is your answer.
It’s not letting me put the answer
Answer: Although Christianity dominates the religious history of the Anglo-Saxons, life in the 5th and 6th centuries was dominated by “pagan” religious beliefs with a Scan do-Germanic heritage.
Included in group(s): English people