Knights were given land in return for a. their freedom b. cash and goods c. working the land d. military allegiance

Knights were given land in return for military allegiance. The correct option among all the options that are given in the question is the last option or option "d". Knights were basically the warriors who fought on horse backs. I hope that this is the answer you were looking for and it has come to your help.

Swaves do not travel through water and stuff like that p waves do