Match each situation with the benefits that professional organizations provide. Bob wants to gain extra
knowledge by joining a
professional organization.
Libby seeks money for
research in a particular field.
Joseph wants to know the
latest legislation pertaining
to his industry
Debby wants to work as
an intern under the guidance
of an expert in her field.
Chad likes to meet with
members of his fraternity to
get a better perspective
of their work.

i do believe   by (keeping an organized record of all sources he or she referenced)good luck.

explanation:

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.  

the vibration from the sound waves messed with the glass and it shattered.

hope this .