**Core Concept**
The management of acute pancreatitis involves a stepwise approach, with a shift from conservative to surgical management based on the severity of the disease. The decision to proceed with surgery is guided by specific indicators that suggest a poor prognosis or complications that require intervention.

**Why the Correct Answer is Right**
Surgery in acute pancreatitis is typically considered in patients with severe disease, characterized by persistent organ failure, necrotizing pancreatitis, or complications such as abdominal compartment syndrome. The presence of these conditions necessitates surgical intervention to prevent further complications and improve patient outcomes. The development of infected pancreatic necrosis is a critical indicator for surgery, as it carries a high risk of mortality if left untreated. Surgical debridement and drainage of the infected necrotic tissue are essential to prevent sepsis and improve the patient's condition.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify a clear indication for surgery in acute pancreatitis. While some patients with mild pancreatitis may require hospital admission, this does not necessarily warrant surgical intervention.

**Option B:** This option is incorrect because it does not accurately describe a condition that requires surgical management. While some patients with acute pancreatitis may experience abdominal pain, this symptom alone is not an indication for surgery.

**Option C:** This option is incorrect because it does not specify a clear indication for surgery in acute pancreatitis. While some patients with acute pancreatitis may require fluid resuscitation, this does not necessarily warrant surgical intervention.

**Clinical Pearl / High-Yield Fact**
Infected pancreatic necrosis is a critical complication of acute pancreatitis that requires prompt surgical intervention to prevent sepsis and improve patient outcomes. Early recognition and management of infected necrosis are essential to improve the prognosis of patients with severe pancreatitis.

**Correct Answer: C. Infected pancreatic necrosis.**