In which tissue do Langerhans cells reside?

Langerhans cells are primarily found in the epidermis, which is the outermost layer of the skin and a type of epithelial tissue. These cells are a crucial component of the immune system, serving as antigen-presenting cells that play a role in the skin's defense mechanism against pathogens. They help to detect foreign invaders, such as bacteria and viruses, and are involved in initiating an immune response.

Unlike connective, muscle, or nervous tissues, which serve different functions in the body, epithelial tissue's primary roles include protection, absorption, and sensation. The presence of Langerhans cells in the epithelial tissue of the skin is essential for maintaining the skin's immune function and overall health, making this answer the correct choice.