When One Worker Is Unemployed for One Year

When one worker is unemployed for one year,

A) we no longer include that worker in labour-force statistics.
B) there may be significant personal costs,but there is no cost to the economy.
C) it is not a problem because as soon as the worker is employed again,any loss of output goes away.
D) there is no effect on national income.
E) the output this worker would have produced is lost forever.