"Carrageenan" is obtained from :-

Options

A. Chondrus crispus
B. Laminaria
C. Gelidium
D. Macrocystis

Answer

To answer the question "Carrageenan" is obtained from, we can follow these steps:

### Step 1: Identify the Source of Carrageenan
Carrageenan is a substance that is derived from certain types of algae.

### Step 2: Recognize the Specific Alga
The specific alga from which carrageenan is obtained is known as Chondrus crispus. This alga is commonly referred to as Irish moss.

### Step 3: Understand the Characteristics of Chondrus crispus
Chondrus crispus is a red alga that is characterized by its finely and profusely branched thallus. It is typically found in the northern Atlantic, especially near seashores.

### Step 4: Know the Uses of Carrageenan
Carrageenan is a polysaccharide that is extracted from the cell wall of Chondrus crispus. It is widely used in various industries, including the stabilization of emulsions in paints, cosmetics, and in the alcohol and sugar industries.

### Conclusion
Therefore, the correct answer to the question is that "Carrageenan" is obtained from **Chondrus crispus**.

---