yellow jackets number among the 900 or so species of the world's social wasps, wasps living in a higyly cooperative and organized society where they consist almost entirely of females--the queen and her sterile female workers.
a. wasps living in highly cooperative and organizaed society where they consist almost entirely of
b. wasps that live in a highly cooperative and organizaed society consisting almost entirely of
c. which means they live in a highly cooperative and organized society, almost all
d. which means that their society is highly cooperative, organized, and it is almost entirely
e. living in a society that is highly cooperative, organized, and it consists of almost all
答案：b
什么意思？
question? assumption?
oh, this is SC.
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