Xia Yan, Jia Shu, and Zheng Wei went to travel together. For the convenience of taking photos, everyone took a classmate's camera and carried another student's bag. If the person carrying Zheng Wei's bag is holding Jia Shu's camera, which of the following is true? ["Jia Shu has Zheng Wei's camera.", "Zheng Wei's camera is Jia Shu.", "Zheng Wei carried Xia Yan's bag.", "Jia Shu carrying Zheng Wei's bag."]