1: Community needs: what areas of work the community needs to be filled in, for example teachers for education or policemen.
2: Finances and accountability: that resources are available for the job to be taken over and that it is supported as an integral part of an economy.
3: Stereotyping: the amount of individual variation available within the career and study.
4: Accessibilty: that one has access to the education needs and training to qualify for the position to fulfil the role.
Answer:
As a result of the rule limiting the size of the House of Representatives to _435 members, U.S. congressional districts on average now have very substantial populations
