The question is in oder for thw contitution to be changed , an amendment must be

i'm not sure i understand what you are trying to ask, if you give more information, that would be most .

the 9th amendment

explanation:

the federal constitution of the united mexican states of 1824 was enacted on october 4 of 1824, after the overthrow of the mexican empire of agustin de iturbide. in the new constitution, the republic took the name of of united mexican states. it was replaced by the federal constitution of the united mexican states in 1857.

if i am correct the answer is going to be a) the federal program of reconstruction ended.