Which of the following is a reasonable conclusion based on the map?
most states in the northeast and midwest decreased in total population, losing representatives.
most northeastern and midwestern states decreased as a portion of the total national population.
most states in the northeast and midwest increased in total population, gaining representatives.
most northeastern and midwestern states increased as a portion of the total national population.

Based on the map, a reasonable conclusion is that most states in the Northeast and Midwest decreased in total population, losing representatives.

Explanation:

The map shows the House of Representatives' apportionment of 2010, in which Ohio (Midwest) and New York (Northeast) lost more than 2 representatives, while other states from those regions, like Illinois, Iowa, Missouri, Michigan, Pennsylvania, New Jersey and Massachussetts lost a representative in the House.

This happened at the same time that southern states like Texas and Florida increased their representation in the House, as a result of the population increase in these states.

not to sure thinking it would be a hope this