阅读下面文字，根据拼音写出词语。（4分）

生命是什么？生命是盛开的花朵，美丽舒展，绚丽多zī(  )；生命是精美的小诗，清新流畅，意yùn（ ）深长；生命是优美的乐曲，音律和Xié(  )，婉转悠扬；生命是流tǎng（ ）的江河，奔流不息，滚滚向前。

Which type of unemployment describes a situation where workers who have been laid off due to economic changes and they are unable to find work due to a lack of education or the necessary skills to move into another available job（）

A. Structural.

B. Frictional.

C. Cyclical.