B.) A form of war emphasizing quick movements to take an enemy off guard.
The Nazis used this form of warfare against the Russians during WWII.
On 16 December 1995 the name was changed once more and was celebrated as a public holiday known as the Day of Reconciliation. The establishment of December 16 as a public holiday was an attempt to strike a balance between a divided past and promoting national unity and reconciliation in a new political dispensation.
.The correct answer is D-Each country in North America uses its own currency. A and B are completely wrong, as there are numerous currencies in use in North America, but to say that they "have done away with separate currencies" is wrong, too, for there are some countries who use the US dollar, being therefore in common and not totally different.