To choose the correct answer regarding who is credited with the creation of sails, it would depend on the specific details provided in the chart you are referring to. However, historically, the ancient Egyptians are often credited with early developments in sailing technology, particularly on the Nile River, while Mesopotamia also had significant advancements in watercraft.
If both cultures contributed to the invention of sails, then "Both" could be a valid answer. If the chart specifies one culture over the other, that should guide your choice. Based on general historical consensus, if you must choose one, you might lean towards Egypt for their well-documented use of sails on the Nile.
Please review the chart to determine which answer aligns with the information presented.