Capitalism and socialism have not existed forever. Capitalism came into existence in the:_______
a. mid-1800s and socialism came into existence in the early 1900s.
b. early 1900s and socialism came into existence in the mid-1800s.
c. mid-1700s and socialism came into existence in the early 1900s.
d. early 1900s and socialism came into existence in the mid-1700s.