Can you help me? Sorry if i have an english error, i'm brazilian. :P

1. We know that historical facts must be related to facilitate our understanding of any society's past. Relate, below, the phrases that explain some aspects of Europe during the Middle Ages to the correct complements.

1) The Church had great economic power ...

2) In feudal society, there was no social mobility ...

3) Much of the Greco-Roman culture has been preserved ...

4) The Crusades had the support of many social groups ...

a) ( ) Because he received many taxes paid by the servants who worked on his land.

b) ( ) Because many saw the possibility of getting rich through trade and land gain.

c) ( ) Because there were few possibilities for enrichment through trade or crafts.

d) ( ) Because many people participated, believing that they would have forgiveness for their sins.

e) ( ) Because she owned large portions of land.

f) ( ) Because the positions were passed from father to son.

g) ( ) Because copyist monks took care of old documents.