**Core Concept**
Exudative ascites is a type of ascites characterized by the accumulation of fluid in the peritoneal cavity due to inflammation, infection, or malignancy. This type of ascites is often associated with increased permeability of the peritoneal membranes, leading to the leakage of fluid components into the peritoneal space.

**Why the Correct Answer is Right**
Exudative ascites is typically seen in conditions such as peritoneal carcinomatosis, tuberculous peritonitis, and peritoneal inflammation. The fluid in exudative ascites is rich in protein, lactate dehydrogenase (LDH), and lymphocytes, reflecting the underlying inflammatory or neoplastic process. The increased permeability of the peritoneal membranes allows for the leakage of these components into the ascitic fluid.

**Why Each Wrong Option is Incorrect**
**Option A:** Protein-losing gastroenteropathy can lead to exudative ascites due to the loss of protein-rich fluid into the peritoneal space.
**Option B:** Tuberculous peritonitis is a classic example of exudative ascites, characterized by a high protein content and lymphocytic predominance.
**Option C:** Malignant ascites, such as that seen in ovarian cancer, is typically exudative in nature, with elevated protein and LDH levels.

**Clinical Pearl / High-Yield Fact**
In contrast to exudative ascites, transudative ascites is typically seen in conditions such as heart failure, cirrhosis, and nephrotic syndrome, and is characterized by a low protein content and low LDH levels.

**Correct Answer: D.**