Obviously C because C is the lockup letter<span />
Nuclear war duh. That's why it was called the Cold War in the first place there was no fighting to begin with. It was just a series of threats and who could have the best things like the Space Race.
Crops: wheat, rice, oats, olives, barley, almonds, millet. oranges,
Domesticated animals: horses, pigs, cows, goats, pigs, oxen
Answer: A period of a thousand years
In contemporary history, the third millennium of the anno Domini or Common Era in the Gregorian calendar is the current millennium spanning the years 2001 to 3000 (21st to 30th centuries).