Final answer:
The two new stages in the Western life course are transitional adulthood and transitional older years.
Step-by-step explanation:
In the West, the two new stages being added to the life course are B. transitional adulthood and transitional older years. Adulthood itself is divided into early, middle, and late stages. The concept of transitional adulthood encompasses the period when individuals no longer consider themselves adolescents but have not yet achieved the traditional milestones associated with adulthood, such as starting a family or establishing a career. Transitional older years refer to a period where individuals are post-retirement but maintain a level of activity and health that doesn’t fit the traditional image of old age. Each life course stage sees associated changes in physical, cognitive, and social aspects, where responsibility and societal expectations shift.