Final answer:
The endoderm develops into the epithelial lining of internal organs such as the gastrointestinal tract and lungs, so the correct answer is 'None of the above'.
Step-by-step explanation:
The endoderm, the inner layer of embryonic cells, deviates from becoming ectoderm or mesoderm and does not contribute to the skin's epidermis. Instead, it specializes in forming internal structures crucial for bodily functions. It gives rise to the epithelial lining of the gastrointestinal tract, influencing the development of the stomach, intestines, liver, and pancreas. Furthermore, the endoderm contributes to the creation of the respiratory system, including the lungs. In essence, the endoderm takes on a unique role in shaping vital internal organs involved in digestion and respiration, distinguishing itself from the fate of other germ layers and skin components, thus aligning with option 4) None of the above.