Why does the text call the nanchan temple, wutaishan the most important example of early chinese architecture?

Nanchan Temple is a Buddhist temple located in the site of Wutaishan, Shanxi Province, China. It is a very important example of early Chinese architecture because its so-called Buddha Hall - an area inside the structure reserved for praying - is the oldest or earliest wooden building that still exists in China. Considering that it was built in the year 782, during the famous Tang dynasty, and that wood is a delicate material that does not stand the test of time, it certainly deserves that title.

In addition, the building preserves a set of sculptures from the same period.    

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.