According to the declaration of independence, when should the people have the right to change their government?
a. when a king doesn't protect their natural rights
b. when a government wants to raise taxes
c. when government officials don't leave office
d. when the government doesn't protect their natural rights

D. "That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness. Prudence, indeed, will dictate that Governments long established should not be changed for light and transient causes; and accordingly all experience hath shewn that mankind are more disposed to suffer, while evils are sufferable than to right themselves by abolishing the forms to which they are accustomed. But when a long train of abuses and usurpations, pursuing invariably the same Object evinces a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new Guards for their future security."

Hope that helps.

Because broadest terms allows the law flexibility depending on changing society and circumstances.