Which is the MOST likely inference that can be drawn from the trend shown on the graph?
a.
There was little demand for workers in the United States between 1898 and 1914.
b.
There were no constitutional guarantees of religious freedom in the United States.
c.
Immigration to the United States was often discouraged between 1898 and 1914.
d.
Factory workers were in great demand in the United States between 1898 and 1914.