A、Their health becomes worse. B、They don’t fight as hard as before. C、They won’t get the benefit of pension. D、They receive less

The number of Americans over the age of 65 is expected to double between now and 2030. This next generation of retirees will be the healthiest, best educated, and most wealthy in American history. But many of them won’t have a retirement benefit their parents’ generation fought hard to get. It is something known as a defined-benefit plan, or "pension". Retired workers who have a pension continue to be paid a certain percentage of their highest annual salary—usually anywhere from one to three percent—multiplied by the number of years they worked for the company. Pensions first became popular during World War n, when a federally-approved wage-freeze meant unions had to negotiate for retirement benefits, instead of pay increases. Pensions reached the height of their popularity in the late 1970s, when more than 60 percent of Americans had one.
1. What problem does the next generation of retirees have?
2. When did pensions reach the height of their popularity?