The correct option is D Sweat gland, sebaceous gland
Sweat glands are exocrine glands present in the skin. Eccrine, merocrine and apocrine are classifications of glands and not actual glands. Therefore the correct option is sweat gland and sebaceous gland. Sebaceous glands are exocrine glands in the skin that secrete an oily or waxy matter, called sebum, to lubricate and waterproof the skin and hair of mammals.