What is the primary reason the Constitution demands that Congress conduct a census every ten years?O To measure the ethnic, racial and gender composition of American society.O To identify changes in the relative populations of the states and apportion seats in the U$.$S$.$ House of Representativesaccordingly.O Because it is important that a government know how many citizensare living within its borders.OTo determine the number of Senators that each state may elect tothe U$.$S$.$ Senate.OTo establish the relative distribution of household income in the U$.$S$.$population.