Final answer:
Paper was the most important Chinese invention for increasing literacy, allowing for mass production of books and the spread of knowledge.
Step-by-step explanation:
The most important Chinese invention for increasing literacy was paper. Paper, invented during the Han Dynasty, was a significant advancement from bamboo and silk as a writing material. It was cheaper, more accessible, and easier to produce, enabling the mass production of books and the spread of knowledge. Paper played a crucial role in promoting literacy and education in China and eventually influenced the development of literacy in other parts of the world.
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