Which statements about the Incans are true? a. They had a written alphabet. They mostly traveled by sea. b. Society was constructed around a feudal system. c. They kept records with a system of knots and strings. d. They used runners called chasquis to carry messages.

c. They kept records with a system of knots and strings.

Explanation:

QUIPU SYSTEM

The Inca may not have had a written language but they had the Quipu system.

This system was very mobile and enabled them to store data such as dates, accounts and even poetry.

It worked by using a variety of colours, strings and knots that were tied in different ways at different heights making so many combinations.

we need the diagram to answer this correctly.