What defines "special occasion speeches"?

"Special occasion speeches" are characterized by their purpose and context, aimed explicitly at enhancing or commemorating particular events. These speeches are crafted to resonate with the significance of occasions such as weddings, funerals, award ceremonies, graduations, and similar events. The content and style of these speeches often reflect the mood and purpose of the occasion, making them unique compared to other forms of speaking.

In contrast, the other options do not align with this definition. Spontaneous speeches lacking preparation do not reflect the intentionality or emotional weight typical of special occasion speeches. Lengthy academic presentations focus more on information delivery rather than the celebratory or commemorative aspects inherent to special occasions. Informal talks among friends lack the formal structure and purpose typically associated with special occasion speeches, which aim to recognize and honor the event and the people involved. Thus, the second option accurately captures the essence of what defines special occasion speeches.