Answer:
Oxytocin
Explanation:
Oxytocin stimulate(s) uterine contractions, cause(s) the breasts to "let down" milk, induce(s) a relaxed mood, and promote(s) responsiveness to the baby.
Oxytocin is a hormone secreted by the posterior pituitary gland and its two major functions are; the contraction of the womb (uterus) during childbirth and lactation (milk secretion/let down.
Social psychology can be best defined as the study of interactions between individuals - C. A very formal definition would be that it studies the individual and how he behaves in groups and how these interact :)
Several distinct cultural or ethnic groups within a society. Hope this helps!
You can apply for U.S. citizenship after you have lived in the U.S. for five years as a permanent resident or after 3 years if you are married to a U.S. citizen. Count 5 or 3 years from the date you became a permanent resident.