Explanation:

- The word "Glee" refers to a feeling of great happiness or delight. It’s often associated with joy and elation.

- \(\textbf{Option 1: Anxiety}\) typically means experiencing worry, nervousness, or unease. It is not related to happiness, so it’s not a synonym.

- \(\textbf{Option 2: Abhorrence}\) means a feeling of repulsion or strong disgust. It represents a negative emotion, opposite of glee.

- \(\textbf{Option 3: Mirth}\) means amusement or laughter, and is closely related to joy and happiness. It is a suitable synonym for glee.

- \(\textbf{Option 4: Distress}\) refers to extreme anxiety, sorrow, or pain. Like anxiety, it conveys a negative emotion rather than happiness.

Option 3: Mirth captures the joyful essence of glee.