2. the dramatic rise in births between 1946 and 1964 is known as the "baby boom. which is true of the baby boom generation? a it was common for young baby boom couples to have five or more children. b the availability of medical services will not be affected by aging baby boomers. c the surge in population of older american will strain social security benefits d experts predict that by 2050, half of all americans will be 65 or older.