Final answer:
A protagonist failing to achieve their goals can be a characteristic of both tragedy and comedy.
Step-by-step explanation:
A protagonist failing to achieve their goals can be a characteristic of both tragedy and comedy. In a tragedy, the protagonist's failure to achieve their goals often leads to their downfall or a tragic ending. On the other hand, in a comedy, the protagonist's failure to achieve their goals may result in humorous situations or a light-hearted ending. An example of a tragic protagonist failing to achieve their goals is Romeo and Juliet, where their love ends in tragedy. In contrast, an example of a comedic protagonist failing to achieve their goals is the character of Lucy in I Love Lucy, where her attempts at various endeavors often lead to comedic mishaps.