You need a subject.
Example subject: dogs and cats.
Compare: They both have fur.
Contrast statement: Dogs are energetic and cats are lazy.
P.S It makes it easier if you make a ven diaphragm
Answer: The ruler with the most power over England was William of Normandy.
Explanation:
He created and area of destruction as many of the rulers had before.
Answer: his autobiography.
Explanation: he knows what he did best, assuming he's not lying nor is repressing memories.