The correct answer is letter D
A Turning Point is a particular time or incident that marks the beginning of a completely new stage in someone's life or in the development of something.
This turning point is always used to refer to major historical changes, such as the end of certain eras for the beginning of a new era, such as the middle and modern ages, in this turning point there were major changes in society.
this is funny , why did you say this tho?
Afghanistan became an independent state when Amanullah established an alliance and signed a treaty of friendship with the Soviet Union. Hope this helps if you have any questions please feel free to message me;)