Answer:
It opened the internet to widespread popular usage
I think it’s B. Hope I helped and have a great day and night!!!!!
It is C. The Secretary of State William Seward argued that the U.S. should buy Alaska because U.S. wants expand, and Alaska had valuable resources.
Answer: It effects countries after they've been decolonized as it's still taking resources away from them after leaving the control of the country up to them.
Explanation: (Hope this helps that's what I got from my History 12 course.)