The young project manager lacked communication skills but he was intelligent well-spoken and precise. A. The young project manager lacked communication skills; but he was intelligent, well-spoken and precise.
B. The young project manager lacked communication skills, but he was intelligent well-spoken and precise.
C. The young project manager lacked communication skills, but he was intelligent, well-spoken, and precise.

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.  

answer; /// the above statement is (true);

answertaste-aversion;