According to the passage, one factor thatcauses unemployment and earnings figures to overpredict the amount of economic hardship is the
A.recurrenceof periods of unemployment for a group of low-wage workers
B.possibility that earnings may be received from more than one job per worker
C.fact that unemployment counts do not include those who work for low wages and remain poor
D.establishment of a system of record-keeping that makes it possible to compile poverty statistics