题目选项分析

Yellow jackets number among the 900 or so species of the world's social wasps, wasps that live in a highly cooperative and organized society consisting almost entirely of females—the queen and her sterile female workers.

Yellow jackets number among the 900 or so species of the world's social wasps, which means that their society is highly cooperative, organized, and it is almost entirely females—the queen and her sterile female workers.