The national assembly dissolved and was replaced
1.) the french republic.
2.) the monarchy.
3.) the senate.
4.) the national convention.

Well if you are talking about contemporary government the answer is number 2.  French Republic.  Specifically it is the President of the Republic who can dissolve the National Assembly and call for new elections.  If is during the French Revolution, it was replaced by a Legislative Assembly followed by the National Convention or number 4.

I believe the answer is: 4. the national convention

The national assembly consist of several establishment which attach themselves to the common people and planned to take control of the government from the nobles during the french revolution.

After the revolution is done, it transform into The National Convention, which act as a government representatives for democratic system of government.

i honestly speaking this is too long

answer; ///i believe the correct answer is the empire state building;