If this is how you've presented the question, Its a bit hard to answer it when one hasn't read these books. It'd be best if you'd put both books into a summary for us to go based off of, at most.
Becket was born about 1119,[4] or in 1120 according to later tradition.[1] He was born in Cheapside, London, on 21 December, which was the feast day of St Thomas the Apostle. He was the son of Gilbert and Matilda Beket.[note 2] Gilbert's father was from Thierville in the lordship of Brionne in Normandy, and was either a small landowner or a petty knight.[1] Matilda was also of Norman descent,[2] and her family may have originated near Caen. Gilbert was perhaps related to Theobald of Bec, whose family also was from Thierville. Gilbert began his life as a merchant, perhaps as a textile merchant, but by the 1120s he was living in London and was a property owner, living on the rental income from his properties. He also served as the sheriff of the city at some point.[1] They were buried in Old St Paul's Cathedral.
Water filters take in water and clean the water. Say some dirt fell in your pool. The water filter would take in the dirty water and clean it and come out with fresh clean water!
Answer:
The dependent clause follows the independent clause in this sentence, so no comma is needed.
Explanation:
When a dependent clause follows an independent clause, there is not need to include a comma as opposed to when the dependent clause is before the independent clause.
In this case the dependent clause being "because her brother’s stereo was turned up to full volume", follows after the independent clause which is, "Beatrice was unable to concentrate on her project". There is therefore no need to put a comma.
option c would be considered an evidence