The correct answer is Lactoferrin, lactoperoxidase, and lysozyme.

These include immunoglobulins (antibodies) that provide specific immunity against pathogens the mother has encountered, oligosaccharides that act as prebiotics and can also prevent pathogens from attaching to the gut lining, and various cells like leukocytes that can fight infection directly. Understanding these components highlights why milk is more than just a source of nutrition; it's a vital biological fluid equipped with defenses to protect the young during a vulnerable stage of development.