Answer: The correct answer is : 1. lines the inside of hollow organs
2. covers the outside of organs
3. protects the outside of organisms
4. is found in the digestive tract
Explanation: The epithelial tissue covers all surfaces of the body exposed to the outside and covering the outside of the organs. It also covers the respiratory tract, the digestive tract, the urinary and reproductive system. The body cavities and hollow organs are lined with endothelium which is a type of epithelium. The epithelial tissue of the skin has quite attached cells since its function is to prevent the entry of foreign bodies into the body forming a protective barrier. The epithelial tissue that covers the organs is not thick, it is simple because it must allow the exchange of substances.
