How long can a war take

depends on who is fighting and what it is about. the cold war (1947-1991) was four years before it ended when the berlin wall fell. and the french and indian war (1754-1763) was seven years because the french were driving out the native americans here in the americas hundreds for years ago

7 to 12 years normally but can be shorter or longer

Explanation:

the virginia plan called for three branches of government and two houses of congress. representation in each house would be determined by population. the new jersey plan called for three branches of government and a single house of congress. each state would have an equal vote.

i would say your answer is a)

sorry if im wrong