The correct answer is A) he is confused about his identity.
The symbol of jigsaw puzzle might represent a character in a short story is that he is confused about his identity.
Like an icon or image, the jigsaw puzzle represents "incompletion," something that needs to be completed in order to give form to something. The jigsaw puzzle represents the possibility of completing something step by step to have some representation that is going to communicate something or have a meaning. So that is the case in the character in a short story, that he is still having found what he is looking for, or he needs additional information or tools to reveal something about his personality.
The other options of the question were b) he loves animals, c) he is spoiled and materialistic, and d) he is a talented musician.