Large intestine in man mainly carries out:

Options

A. digestion of fats
B. absorption
C. assimilation
D. digestion of carbohydrates

Explanation

**Step-by-Step Solution:**

1. **Understanding the Function of the Large Intestine**: The large intestine is a crucial part of the digestive system in humans. Its primary role is to absorb water and salts from the material that has not been digested as food, and to prepare waste (feces) for elimination.

2. **Evaluating the Options**: The question presents several options regarding the functions of the large intestine. We need to analyze each option to determine which one is primarily carried out by the large intestine.

3. **Analyzing Each Option**:
- **Digestion of Fat**: This process occurs mainly in the small intestine, where enzymes break down fats. Therefore, this option is incorrect.
- **Absorption**: The large intestine is responsible for the absorption of water, electrolytes, and certain vitamins. This is a key function of the large intestine, making this option correct.
- **Assimilation**: This process primarily occurs in the kidneys and is not a function of the large intestine. Thus, this option is incorrect.
- **Digestion of Carbohydrates**: Similar to fat digestion, carbohydrate digestion mainly takes place in the small intestine. Hence, this option is also incorrect.

4. **Conclusion**: After evaluating all the options, it is clear that the large intestine mainly carries out the function of absorption.

**Final Answer**: The large intestine in man mainly carries out absorption.

---