What is the main role of the legislative branch

What is the term for a short statement about history that has not been yet been proved

The telegraph, the transatlantic telegraph cable, and the telephone were important to businesses after 1850 because of a. they created a system for developing new inventions. b. they filled a need that other inventions of the day could not. c. they attracted investors and created the stock market. d. they made picture-taking a popular american pastime.

Aform of government that has within its territorial boundaries