Choice A reason:

This statement is correct and explains the difference between acute and chronic cholecystitis. Acute cholecystitis is characterized by a sudden onset of inflammation, often caused by gallstones blocking the cystic duct. On the other hand, chronic cholecystitis is a long-standing inflammation resulting from repeated episodes of acute cholecystitis or chronic irritation from gallstones.

Choice B reason:

This statement is incorrect. While gallstones can be a cause of both acute and chronic cholecystitis, gallbladder cancer is not a typical cause of either condition.

Choice C reason:

This statement is incorrect. Acute cholecystitis can affect individuals of all age groups, and age is not a differentiating factor between acute and chronic cholecystitis.

Choice D reason:

This statement is incorrect. Both acute and chronic cholecystitis may require surgical intervention, depending on the severity and complications of the condition. Lifestyle modifications are often recommended to prevent gallstone formation and manage symptoms, but they are not the sole treatment for acute cholecystitis.