## Core Concept
The question tests knowledge of the caloric content of various fruits. Fruits generally have varying amounts of calories based on their water content, carbohydrate (sugar and fiber), protein, and fat composition.

## Why the Correct Answer is Right
Among common fruits, **durian** is known for having one of the highest caloric contents. A 100-gram serving of durian can provide approximately 147-150 calories, which is relatively high compared to other fruits. This is due to its high content of carbohydrates and fats. Durian contains a significant amount of **sugars** and **healthy fats**, contributing to its high caloric value.

## Why Each Wrong Option is Incorrect
- **Option A:** While **jackfruit** is a large fruit and does contain calories, its caloric content per 100 grams is roughly around 51-52 calories, significantly lower than durian.
- **Option B:** **Banana** has about 89 calories per 100 grams. Although higher than some fruits, it is still lower than durian.
- **Option C:** Without specifying, if we consider a common fruit like **apple**, it has about 52 calories per 100 grams, much lower than durian.

## Clinical Pearl / High-Yield Fact
A high-yield fact to remember is that durian, despite its notorious smell, is exceptionally rich in calories, making it stand out among fruits. This is relevant for patients or individuals on a calorie-controlled diet.

## Correct Answer: D. Durian