The two advertisements are most likely about （）

A．children tended to compete for the favor of their parents
B．children were determined to throw off their immigrant identities
C．children were urged to achieve success in the fluid and classless society
D．children worked hard for success along paths chosen by their parents

A．The Puritan belief in the virtue of work.
B．Richness of opportunities in the new world.
C．Lack of fixed social ranks and classes.
D．Determination to deny the value of the new world.