Family gatherings that honor particular moments in our lives—weddings, special holidays, and so forth—are often sources of tension when different family members want to "change things up." As a facet of culture and how we learn it, this reminds us that culture is a shared experience. It also reminds us that culture is:A) static in that it remains identical, consistent, and uncontested over time.
B) constantly contested, negotiated, and changing.
C) genetically inherited.
D) completely unique to humans.

I believe the answer is "B) constantly contested,negotiated,and changing. "

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

answer; group think;