The Incas of South America had no system of writing. They kept records and accounts with the help of
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → quipu, cords on which knots were tied
The Incas had no writing, but they kept records with the quipu, a set of cords on which knots were tied to stand for numbers. Clay tablets with wedge-shaped signs belong to Mesopotamia.