Pages of the manuscript books were made of palm leaves
So, Option D is correct answer

Pages of the manuscript books were made of Palm leaves.

The correct answer is option 'D' - Palm leaves. Manuscript books are ancient books that were written by hand before the invention of the printing press. These books were commonly made using materials that were readily available and durable enough to withstand the test of time. Palm leaves were one such material that was commonly used for making manuscript book pages.

Why were palm leaves used?

- Durability: Palm leaves are known for their durability and longevity. They have a natural resistance to pests, decay, and moisture. This made them an ideal choice for manuscript book pages, as they could withstand the test of time and preserve the writings for a long period.

- Abundance: Palm trees are abundant in many parts of the world, especially in tropical and subtropical regions. As a result, palm leaves were readily available and easily accessible for the purpose of making manuscript book pages.

- Easy to Write on: Palm leaves have a smooth surface that is suitable for writing. The leaves were treated in a way that allowed the ink to adhere to the surface, resulting in clear and legible text. Scribes used sharp tools to inscribe the text onto the leaves.

- Lightweight: Palm leaves are lightweight, which made them convenient for carrying around. Manuscript books were often transported from one place to another, and the lightweight nature of palm leaves made them easy to handle and transport.

- Flexibility: Palm leaves are flexible and can be easily folded or rolled without breaking. This flexibility allowed for easy storage and handling of the manuscript books. It also made it possible to bind the leaves together to form a book.

- Environmentally Friendly: Palm leaves are a renewable resource, as palm trees continue to grow and produce leaves throughout their lifespan. Using palm leaves for manuscript book pages was an environmentally friendly choice compared to other materials that may have required cutting down trees.

In conclusion, palm leaves were chosen as the material for manuscript book pages due to their durability, abundance, ease of writing, lightweight nature, flexibility, and environmental friendliness.