What was true about the economic boom after ww2
a.) families headed by single females made economic gains
b.) the american economy became the world's strongest
c.) families headed by african americans achieved equality of income
d.) home ownership decreased

The american economy became the world's strongest

Explanation:

I just did it on apex

to replace ineffective because   andrew jackson's spoil system was a deliberate policy after he became president to remove federal employees he considered to be political opponents and replace them with his own supporters.