Which of the following statements best describes a federal system of government?
a. independent states form an alliance and give up a clearly defined and limited powers to a national government
b. the national government holds all power, creating and abolishing local governments as it is wishes.
c. state or regional governments share power with a national government.
d. states hold all the power and there is no central government.

The most common theories about what happened to the White colony are:

1. The colonists left to live with the Croatoan Indians

2. The colonists were killed during an attack by American Indians

3. The colonists were killed during an attack by the Spanish Armada

Explanation: The White colony was reestablished in 1587 by John White, although it was originally established in 1585 by Sir Walter Raleigh because Queen Elizabeth wanted to establish colonies in the Americas as the Spanish was doing. John White brought with him men, women and children and they found the fort that Sir Walter Raleigh built.

After they ran out of food and supplies, John White had to return to England for supplies but couldn't come back to the colony for 3years as England was in war then. Upon his return to the colony, he found no inhabitants and only the word "Roanoke". This led to different theories about what could have happened to the settlers as no one knows till date.