(A) Nervous: Sweat glands are not composed of nervous cells. Nervous cells are involved in transmitting nerve impulses.
(B) Epithelial: This is the correct answer. Sweat glands are made up of specialized epithelial cells that form the glandular tissue responsible for producing and secreting sweat.
(C) Connective: Connective tissue supports, connects, or separates different types of tissues and organs in the body, but it does not form the sweat glands themselves.
(D) Endocrine: Endocrine cells secrete hormones directly into the bloodstream, whereas sweat glands secrete sweat onto the skin surface.
(E) Muscle: Muscle cells are involved in contraction and movement, not in the secretion of sweat.
Summary:
Sweat glands consist of specialized epithelial cells, which are responsible for the production and secretion of sweat.