Inulin is a

Options

A. Lipid
B. Carbohydrate
C. Protein
D. Nucleic acid.

Answer

To answer the question "Inulin is a", we will follow these steps:

### Step 1: Identify the options
The options provided are:
- Lipid
- Carbohydrate
- Protein
- Nucleic Acid

### Step 2: Understand what inulin is
Inulin is a type of carbohydrate. It is classified as a soluble dietary fiber and is found in various plants. Inulin is part of a group of carbohydrates known as fructans.

### Step 3: Analyze the characteristics of inulin
- **Soluble Dietary Fiber**: Inulin is soluble in water and can help in digestion.
- **Oligosaccharide**: It is made up of a small number of sugar molecules, which classifies it as an oligosaccharide.
- **Fermentation**: Inulin passes through the small intestine and is fermented in the large intestine, promoting healthy gut flora.

### Step 4: Eliminate other options
- **Lipid**: Inulin is not a lipid as it does not consist of fatty acids or glycerol.
- **Protein**: Inulin is not a protein because it is not made up of amino acids.
- **Nucleic Acid**: Inulin is not a nucleic acid since it does not consist of nucleotides like DNA or RNA.

### Step 5: Conclusion
Based on the analysis, the correct answer is that inulin is a **carbohydrate**.

---