According to the Text,what Was the Main Reason for the Employment

According to the text,what was the main reason for the employment and income of lone mothers in Canada increasing between 1980 and 2000?

A) Lone mothers at this time were more likely to be divorced than teen parents.
B) The cost of living did not rise as significantly during this time as had been predicted.
C) More government funding became available to support single-parent families.
D) Lone mothers at this time tended to be older and have higher education.