Step 1: Understand the statement:
The sentence praises one region for its patterned textiles. It calls the region the most original, creative and prolific source in the world.
Step 2: Recall the textile history:
The Indian subcontinent has made printed, dyed, woven and embroidered cloth for thousands of years.
It gave the world block printing, bandhani, ikat, kalamkari, chintz and many other crafts.
Indian cloth was traded to Europe, Africa and South-East Asia, and it shaped design in those places.
Step 3: Check the wrong options:
Africa has fine textile traditions, but the claim in the textbook is made for India.
America is not known for this large and early output of patterned cloth.
Arunachal Pradesh is only one state, so it cannot be the source for the whole world.
Final Answer:
The Indian subcontinent is the most original, creative and prolific source of patterned textiles, option (A).