Epithelial tissue are arise from :

Options

A. Ectoderm
B. Endoderm
C. Mesoderm
D. All the above

Answer

### Step-by-Step Solution:

1. **Understanding Epithelial Tissue**: Epithelial tissue is one of the four main types of tissue in the body. It serves various functions, including protection, absorption, secretion, and sensation. It lines body cavities, covers surfaces, and forms glands.

2. **Identifying Germ Layers**: Epithelial tissues arise from three primary germ layers during embryonic development:
- **Ectoderm**: The outermost layer, which gives rise to the epidermis (skin) and nervous system.
- **Endoderm**: The innermost layer, which forms the lining of the gastrointestinal tract and other internal organs.
- **Mesoderm**: The middle layer, which develops into connective tissues, muscles, and the mesothelium (lining of body cavities).

3. **Conclusion**: Since epithelial tissues can arise from all three germ layers (ectoderm, endoderm, and mesoderm), the correct answer to the question is that epithelial tissues arise from all of the germ layers.

4. **Final Answer**: Epithelial tissues arise from all of the germ layers: ectoderm, endoderm, and mesoderm.