Question

According to the Declaration of Independence, when do the people have the right to overthrow their government?
when the government taxes the people too much
when the people as a whole do not agree with the policies of the government
when they are ruled by a king
when the government fails to protect the fundamental rights of the people
when the economy fails to create new jobs

Answer 1

According to the Declaration of Independence, people have the right to overthrow their government "when the government fails to protect the fundamental rights of the people," since this violates the "social contract". 

Answer 2

The correct answer is "when the government fails to protect the fundamental rights of the people". According to the Declaration of Independence, overthrowing a government is a serious matter. However, it is plausible and even mandatory for serious reasons, specially in a scenario when people have endured many abuses for a long time. These abuses are essentially violations to the fundamental human rights.