Answer:
Sharecropping
Explanation:
This was a form of agriculture where people were allowed to use the landowners land in exchange for sharing crops.
Because volcanoes tend to be along fault lines, tectonic plates
The correct answer is C.
A is incorrect because the battles were not at sea and had nothing to do with ships.
C is incorrect because the Crusades had nothing to do with contributing money to the Church (but rather defending it against Muslims).
D is incorrect because, although knights did wear these crosses, they, alone, were not the Crusades.