Answer:
Metaphor
Step-by-step explanation:
A metaphor compares two unlike objects without using like or as. In this case, the king is being compared with a bear. This works, because most likely the king is not an actual bear.
Hyperbole is extreme exaggeration, such as "If I don't get an A on this test, I will die". This isn't the case with the sentence.
Similes compare two things by using like or as.
Personification gives human characteristics to something not human. "The raindrops danced along the window" is an example of personification.