How did the "market revolution" change the way Americans understood the family? 

a) It did not. The family is a traditional institution that does not change. 

b) With the growing importance of waged labor, the household was no longer a workplace but a place of rest. That shift encouraged new thinking about the role men, women, and children played in an ideal family. 

c) With the availability of new jobs and consumer goods, male heads of households had new responsibilities to take care of their families. It simply reinforced earlier, traditional notions of family values. 

d) New ideas about the family encouraged society to rethink what it meant to be a child, and to expand funding for public education and parks.