Infancy is the period that:
a. runs from the second month after birth to the end of lactation, usually by the end of the third year.
b. runs from three to seven years, generally postweaning.
c. is also called the "neonatal" period.
d. includes three months before birth and three months after birth.

a. runs from the second month after birth to the end of lactation, usually by the end of the third year.

Explanation:

Infancy peculiar to humans is a period that ranges from birth to the end of lactation, usually by the end of the third year. It is a time of extreme dependence on their mothers and by extension adults. It follows the neonatal period which extends from birth to 30days (1 month).

The infancy period is one of rapid growth and development.

i think c is correct.

answer:

explanation: in what sense? do you mean like forget about them after losing their connection or are we talking about a mother forgetting her child in a car or store?

as for the child one, i have no idea. probably a very high level of stress and or tiredness.

as for the emotional connection loss one, if you are trying to get over somebody and forget them, you don't. atleast not completely yet and certaintly not immediately. it takes time. patience and alot of distraction. it gets easier every day. have a good support system. a best friend or parent perhaps. someone who will be there for you and you get through this and who will listen. also lots of water and stretching and deep breaths if you really start to get down.