What factors contributed to Mehmed's victory in Constantinople?

Mehmed used a new type of cannon that he developed himself. He also surrounded Constantinople on land and on sea. he also kept up a constant barrage of cannon fire against the city walls.

Explanation:

b) they want the land taken away from the wealthy landowners and given to peasants.

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.