[Solved] Which of the following was not invented centuries ago in China? A)Gunpowder B)The wheelbarrow C)Printing with movable type D)Winding clocks Employed: The state of having a job or career, especially where one works for an employer as opposed to being self-employed. Eusocial: Describing a complex social structure in certain animal species, where there is cooperation in caring for the young, division of labor, and overlap of generations within a colony. Heterocephalus Glaber: Also known as the naked mole-rat, a rodent known for its resistance to cancer and its ability to live in low-oxygen environments. Naked Mole-Rat: A rodent species known for its unique traits, including high resistance to cancer and pain, living in underground colonies in Africa.