Answer:
A. government has control over a particular territory.
Step-by-step explanation:
In order to know the answer, it is best to look for context clues in the question.
The word "sovereignty" comes from the root word "sovereign." This word is related to the words: ruler, power, authority, control etc.
Choice A clearly shows the meaning of sovereignty because it emphasizes on the government's authority over a particular territory. It means that it is the supreme ruler.
Choice B doesn't show control because it has given up its authority.
Choice C doesn't show sovereignty because the government doesn't use its natural resources for the betterment of the nation, which is normally being done when one is in control over a territory.
In Choice D, the government is "not in supreme power" because it is divided into two territories.