B) Her entry from the side underlines her devious mannerisms. I believe
It's when someone makes a fast and false conclusion because they only know the general idea of the thing they are concluding, and not all of the facts, if that makes sense. It's kind of like a stereotype, automatically assuming that someone is a certain way just because they participate in a certain sport, for example.
The answer to the question above is "b) He was depicted as a Saxon warrior" which is the true statement regarding Beowulf according to the Beowulf manuscript. Beowulf is a well-known legendary hero from the Geatish legend. He shows the strength and the courage of a hero which makes him considered as an Anglo-Saxon warrior.