Which condition must be true for a nation to exist?
a. all of the people must speak the same language.
b. a single religion must unify the citizens of the country.
c. at least a million people must live within the borders of the country.
d. the country must be sovereign and handle its own affairs.

The correct answer is D) The country must be sovereign and handle its own affairs.

In order for a nation to exist, there must be some sort of structure that unites people under a common set of rules/customs. Usually this structure is a political one that has different branches of government. These branches of government are then responsible for creating laws that will help to keep order within a nation. If there is no ability to handle affairs, then there is no nation, as it will most likely be influenced by another country or nation.

the answer is

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.