Air Force history question just need help please zoom in it’s easier to read

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

most camps were located in the area of the general government in occupied poland

hello, your actual correct answer is c. taxes.

factories are actually the second biggest but on your optian list its taxes.