Read the following passage carefully and answer the question that follow, by selecting the correct corresponding option. April Fool's Day is a fun day for children. They play practical jokes and tricks on one another. These tricks are harmless. They are also easy to do. For example, the computer mouse can be taped to the table The user will be puzzled when he cannot move his mouse, no matter how hard he tries. Children are often the ones who come up with the simplest but funniest tricks. What is the meaning of the word 'puzzled' as used in the passage?

• A.  Angry                   
• B.        Worried              
• C.    Simple                 
• D.         Confused