Social Stratification Is the Division of Society into Strata or Levels

Social stratification is the division of society into strata or levels of inequality. One measure of that inequality is the wealth of each Canadian family. In the past 21 years in Canada, what has happened to the distance between the lowest quintile and the highest quintile for total family wealth?

A) The distance between them has increased because the net worth of the top three quintiles has increased while the bottom quintiles have remained the same.
B) The distance between them has increased because the net worth of the richest quintile has increased and the bottom quintile has decreased.
C) The distance between them has increased because the rate of increase in the top quintile is double the increase in the lowest quintile.
D) The distance between them has decreased because the social welfare system has minimized income disparities.