All of the following are TRUE about DB plan EXCEPT that ______.A．the sponsor provides reti

All of the following are TRUE about DB plan EXCEPT that ______.

A．the sponsor provides retirement income when the money workers have been setting aside is not enough

B．it is adopted in the United States

C．under a DB plan, companies may provide less money for pensions than needed

D．currently it is not as preferred as individual DC plans in the United States

请帮忙给出正确答案和分析，谢谢！