Read the scenario below. Then answer the question that follows.

Suppose you are living in ancient times. Your people want to make a calendar to record the location of the sun throughout the seasons. But you do not have a written language, so you cannot use words or numbers! However, you could use outdoor structures or other natural materials. You want to make sure that your calendar can show the solstices and equinoxes.
Text to speech
1. Define the problem faced by ancient peoples by listing their criteria and constraints.
Text to speech
Criteria
Constraints