Plz.

explain why feudalism developed in western europe:

The people of western Europe needed a source of protection from many incading threats with order. As a result, they invented the system in which people of higher classes provided the protection for lower classes in return for their loyalty to them. THis allowed people to be safe and happy with cooperation between classes.

answer; the best answer is (demand);

i’m   sure probably just geuss and see which one you can get right, i’m pretty sure it is the combination of goods and services