Final answer:
The number of people per district depends on the population distribution. By law, districts must have roughly the same number of people, a process known as redistricting, which occurs every ten years to adjust for population changes. Option D is correct.
Step-by-step explanation:
The question regarding how many people should be in each of the 30 districts does not have a definitive answer such as A) 30, B) 60, C) 90, since the correct response is D) It depends on the population distribution.
By law, electoral districts must have roughly the same number of people in each one to ensure equal representation. The redistricting process takes place every ten years, after the United States Census has been completed, to adjust for population changes within the states.
In states with large populations, the number of people per district can be quite high to accommodate the total seats available. This is evident in states such as California, where State Assembly Districts had between 461,000 and 470,000 people as of 2011.
Conversely, states with smaller populations might only have one representative for the entire state because their population does not warrant more than one due to the fixed total of 435 House of Representatives seats. Currently, a Congressional district consists of approximately 700,000 citizens to balance the representation across states. This distribution ensures that every district represents the people equally based on population.