Hey there! It was the 3rd estate that was taxed the most. :)
Option 2 I know because I had to answer the same question at some point.
Answer:
c both provided military service and aid
Explanation:
its makes sense
The lack of natural resources affected Mesopotamians because of no wood they had to make their homes out of mud bricks which did not hold up well. Also because they had no mountains or natural barriers they were often invaded. They had to make walls out of mud too. They were able to trade with the surplus of grain they grew for things that they needed.
