What do cell phones, personal computers, and global positioning products all have in common? A.
They are constantly getting better and faster because America's free enterprise system promotes innovation.
B
They have all reached their peak international market potential and will likely disappear in 5 to 10 years.
C.
They were invented in Asia and sold in Asian markets before being exported to American markets in the twenty-first century..
D
They would never have been invented if the U. S. government had not invested in their research and development.