Read the passage from The Pillow Book. "But, when I turned back to Her Majesty and saw her tranquil expression, her charming features which had recently taken on a more adult cast, and her complexion which went so beautifully with her scarlet clothes, I realized that no one in the world could equal her.”

Which statement best explains why this passage is an opinion?

It is backed by evidence.
It is based on a personal view.
It was written by a credible source.
It can be proved through other sources.