Respuesta :
The idea that is developed to believe that flax is valuable is "by suggesting that human societies have always recognized the benefits of cultivating flax." So, option (4) is the correct answer.
Why is the idea of flax valuable?
People used to wear animal skins before plant fibers were used to manufacture clothing. This was convenient in cold weather, but not so much in hotter climates.
Plant domestication allowed humans to discover that some plant fibers, such as cotton and flax, could be used to manufacture clothes.
The resulting materials were significantly lighter and more suitable for hotter conditions.
To learn more about flax, refer below
https://brainly.com/question/13356617