PLEASE HELP FAST I WILL GIVE BRAINLIEST IF RIGHT! How did architects in ancient Egypt determine a standard length for a
cubit, which was traditionally the measure of a man's arm from his elbow to
his fingertips?

O by taking the longest step that they could
O by using rods and ropes with a standardized length
O by measuring the tallest reed in the river
O by using mathematical calculations based on the position of the sun