The author considers the contentions made by the recent historians discussed in the passage to be______

A．A new income pension
B．Workers with low lifetime earnings can receive minimum income support
C．A premium pension financed by personal income tax
D．A premium pension which is administered by a government agency

A．People can transfer some money from their investment accounts to the Social Security taxes
B．The return people earn from their accounts can decide their social benefit decisively
C．People can spent more on investment and meanwhile receive more benefit in the future
D．These accounts will determine how much people can receive in their lives