In what context would you likely hear the term lamentation?

The term "lamentation" refers specifically to the passionate expression of grief or sorrow. It is often used in literary or emotional contexts where individuals are mourning the loss of someone or something significant. This aligns perfectly with the correct context, which involves expressing deep sadness and mourning.

In contrast, the other options suggest contexts that do not relate to sorrow or grief. Celebrations are typically characterized by joy and happiness, making the term inappropriate in such scenarios. Similarly, discussions of joy inherently involve positive emotions and would not include expressions of lamentation. Lastly, talking about financial success also carries a positive connotation, which is contrary to the themes of loss and grief that lamentation embodies.