Final answer:
The Egyptians maintained the consistency of the cubit by adjusting it against a master standard, ensuring uniformity across the empire. Standardized measuring rods were likely used in conjunction with this method. Correct option is A
Step-by-step explanation:
The Egyptians maintained consistency in the measurement of the cubit throughout their empire primarily by periodically comparing and adjusting the cubit against a master standard.
This method ensured that the cubit, as a unit of measurement, remained uniform across the empire, which was essential for trade, construction, and various other civil activities. Additionally, the use of a standardized measuring rod made of a specific material could also be implied, as consistency would depend on the stability and uniformity of the tools used for measurement.
Measurement tools and their accuracy in representing standardized lengths have always been crucial to societies, especially in ancient times for successful commerce and administration.
Rulers, yardsticks, and tape measures are the modern correspondent of these ancient measurement tools, having evolved from more primitive units based on human dimensions.
Over time, the requirements of commerce and the limitations of earlier measures led to the emergence of these more refined tools and techniques for ensuring consistency.