Answer:
D to summarize
Explanation:
On the whole is used to summarize an idea because it is used at the end of the passage.
Edward III of England created the first English dukedom by naming his eldest son Edward, the Black Prince, as Duke of Cornwall in 1337, after he lost his own title of Duke of Normandy.
im sorry i dont know this ;-; have a good day though !!
C. is a comparative adverb