What is lactation in animals

Explain

Lactation is the period of time that a mother secretes milk from her mammary glands. The lactation cycle is the period between one calving and the next. ... In an ideal world, cows calve every twelve months, as they must calve in order to be able to produce milk. A dairy cow is a mammal.

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Lactation describes the secretion of milk from the mammary glands and the period of time that a mother lactates to feed her young. The process naturally occurs with all post-pregnancy female mammals, although it may predate mammals. The process of feeding milk in all animals (including humans) is called nursing, and in humans it is also called breastfeeding. Newborn infants often produce some milk from their own breast tissue, known colloquially as witch's milk.

Lactation in Mammals: Lactation is the production of milk from the mother. This is only unique to mammals. The hypothalamus signals the anterior pituitary to secrete prolactin. This stimulates the glands to produce milk in response to suckling from a newborn. The process of feeding milk in all animals is called nursing, and in humans it is also called breastfeeding. Newborn infants often produce some milk from their own breast tissue, known colloquially as witch's milk.

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so whats the answer? ?

a. i. only is correct.