Which of the following contain ( -1,4 ) linkage?

Step-by-step solution

Lactose or milk sugar (carbohydrate) is reducing sugar formed through ( -1 4 ) condensation between galactose and glucose. Lactose does not occur in nature except as a product of the mammary gland. It is highest in human milk as compared to that of cow, buffalo and goat. Lactose is a product of glucose, fructose and galactose.