In the United States, most people do not consider themselves as having reached "adulthood" until the age of __________ years

The wear-and-tear theory of aging is weakened by the fact that

the human body cannot repair itself. many parts of the body wear out from use. the human body is able to repair damaged areas. machines cannot grow old.

Some psychologists believe that sexual abuse in childhood maylead to the ________ of

memories. A) retrieval B) recognition C) repression D) retreat