What does the use of quipu in the Inca Empire illustrate about their society? Reliance on oral tradition for historical preservation. A complex system of record-keeping without a written script. A highly developed written language. Advanced mathematical understanding.

The use of quipu in the Inca Empire illustrates that they had a complex system of record-keeping without a written script. Quipus were used to record information such as census data, tax obligations, and other administrative details. While they did not have a written language, the Inca Empire relied on quipus as an effective method of record-keeping and communication.