Identify three groups of people who lived on or near the Arabian Peninsula at this time. How did they influence the region? pls pls pls help me is fro. today pls pls help me pls will be giving breanlist

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.