Which of the following is true about population growth? Group of answer choices Unlike South Korea and Singapore, no European nation has so far fallen below replacement-level fertility One proposal to deal with an aging population is to ban all immigration into the nation Some low fertility countries provide incentives for having a child such as tax breaks, low-cost child care centers, long paid parental leaves, and as much as a year of maternity leave with pay Following the disintegration of the Soviet Union in1991, death rates fell rapidly