Which of the following most closely describes what sociologists mean by the term "life course"?
1. the process by which the historical legacies of the past impact organizations in the present, making some choices or outcomes appear more logical than others
2. the key transitions or turning points make as they age, and the broad social patterns those transitions represent
3. the structure of coursework and content of a sequence of courses making up a program of study in a school or school system
4. the geographic locations where individuals discover they are able to accomplish life goals