Answer:It was a failed plan to unite the American colonies.
Explanation:
The thing that caused rebel groups to rise up against the communist regime in Afghanistan in 1978 is the declaration of war by the Muslim and also by the anti-communists. It also started when People's Democratic Party of Afghanistan (PDPA) got the power in the military.
Since this is a timed test I'm pretty sure i'm too late to give the answer but it's C. Hope this helped (although i'm late)
Its the Gold Rush which occured in 1848.