The correct answer to this open question is the following.
In seventeenth-century England, working for wages was widely associated with servility and loss of liberty. Only those who controlled their own labor could be regarded as truly free. Based on this understanding, the type of worker that would claim the most personal liberty and freedom were farmers.
During the 17th century in England, farmers could say that they were the ones with more personal freedom. However, the falling prices of wool and grains affected farmers du to the agricultural depression of that time. Grain fell by 12% while wool fell by 30%.
Because they are primary colours and with these colours you can make more colours