It took only ____ years for 50 million people to use the Internet compared to 25 years for 50 million people to use telephones.
a. three
b. five
c. seven
d. nine
Answer: five
It took only ____ years for 50 million people to use the Internet compared to 25 years for 50 million people to use telephones.
a. three
b. five
c. seven
d. nine
Answer: five