Because they are the ones who help the most in the world
The concept of the three continents in the Old World, viz. Asia, Africa, and Europe, goes back to classical antiquity. Their boundaries as defined by Ptolemy and other geographers of antiquity were drawn along the Nile and Don rivers.
This is a controverical topic since many suggest that he was born a little before B.C ( Which is known as Before Christ ). His birth was more then 2,000 years ago.
D) stable, permanent relationship between agencies,congressional committees, and an interest group