What does the author think of the expert’s claim concerning unemployme

What does the author think of the expert’s claim concerning unemployment?

Self-evident.  

Thought-provoking.

Irrational

Groundless.

答案及解析：本题考查细节。D选项，Groundless，无理由的。原文in part because experts and analysts believe that declaring the problem the problem deeply rooted, with no easy answers, makes them sound serious。综上，D选项正确。A选项，Self-evident.不言而喻的，故排除。B选项，Thought-provoking，发人深省的，故排除。C选项，Irrational，不合理的，故排除。故正确选项为D。