What development made exploration to Africa easier for Europeans?

b. the 200th birthday of the united states

which

like dude you only explained

the problem not the

  the common sense as a pamphlet written by thomas paine. it promoted the independence of the colonies from british rule. the distribution of this pamphlet was great, it reached people everywhere and it was even read aloud at places people met. it also unite the colonists before the revolutionary war.

answer is d