How does this discussion illustrate the concepts of power, ideology, and hegemony?

MINI CASE

Brandon and Gabriella Houston were both home from college for Thanksgiving weekend. Brandon, a senior, attended a state university about 90 miles from home. Gabriella, a sophomore, attended a small college in a neighboring state. Both were home for the first time during the school year and were spending some time catching up. As they lounged in the living room watching football, the smell of roast turkey wafted through the house and assorted relatives milled around munching on celery sticks and green olives.