The picture shows the illustrations of "splitting bamboo to float the pool" and "swinging materials into the curtain" in the Ming and Song Dynasties, reflecting this important development in ancient C

This problem can be solved by exclusion. Judging from the illustrations of "splitting bamboo and floating pool" and "swinging material into curtain", this invention is papermaking, which first appeared in the Western Han Dynasty, so A is wrong. It was Cai Lun who improved it, so B was wrong. It was printing that prepared the conditions for the emergence of the European Renaissance, so D was wrong.