GMAT Critical Reasoning (CR) | Re: In response to a high unemployment rate and to complaints

how is it D i am thoroughly confused!
If people have work ex and still are unemployed they still constitute a segment of the unemployed! after receiving the training
they get employed and the unemployment rate is still reduced right?
How can we make the assumption that just because these people have work ex not receiving the training will still make them employable?
experts please shed somelight!chetan2u