Final answer:
Lillian is most likely part of Generation X, a group known for juggling the care of their teenage children and elderly parents.
Step-by-step explanation:
Lillian is likely a member of the Generation X group, according to social scientists. This generation is known for their struggle to balance the needs of their teenage children and their aging parents, often referred to as the "sandwich" generation. They are 'sandwiched' between the responsibilities of caring for their children, who may be in the pivotal teenage years, and their elderly parents. The Baby Boomers are Lillian's parents' generation, which is the cohort born between 1946 and 1964 and now reaching their 60s and 70s. Baby Boomers were the first generation to have their own spending power as teenagers, and as they've aged, they've redefined expectations for what it means to be older.