Oh cr ap! my point bar is full again! could someone mark my answers brainliest?

What was president nixon’s approach of using tension between us and other nations

By july of 1950 north korean forces had pushed south korean forces as far south as

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.