At the Turn of the 20^th Century, About 50% of US

Multiple Choice

At the turn of the 20^th century, about 50% of US workers worked in either the agricultural or the domestic service spheres. Approximately 100 years later that percentage had decreased to which of the following figures?

A) 4%
B) 10%
C) 16%
D) 22%
E) 35%