Explanation:

Solution with Explanation:

The word "Lament" means to express sorrow, grief, or regret, often in a deep and emotional way. It is commonly associated with mourning a loss.

Now, let's analyze the given options:

• A: Complain → Means expressing dissatisfaction, which is somewhat related but not the best match. ?
• B: Mourn → Means to grieve or express sorrow, which is a perfect synonym for "Lament." ?
• C: Console → Means to comfort someone who is grieving, which is the opposite of "Lament." ?
• D: Celebrate → Means to rejoice or be happy, which is the opposite of "Lament." ?

Thus, the correct answer is:
? Option B: Mourn