Violence has declined in northern ireland because terrorist organizations
a- agreed to negotiate.
b- misspent most of their funding.
c- lost the support of the citizens.
d- were suppressed by the military presence.

Hello there!
Its a pleasure for me to help you today!
Violence has declined in Northern Ireland because terrorist organizations agreed to negotiate. 
Hope this helps!
~Sammy)

It developed as a reaction to the impact of european colonialism in africa on peoples of african descent. in the  mid-20th century, activists in africa adopted pan-africanism as a rallying cry for independence from colonial rule. some african pan-africanists sought to unite the continent as one independenthope it was useful