Correct option is C
The correct answer is: (c), A and D only
Myrdal argued that regional differences are the natural outcome of economic development and the inevitable result of market forces.
There will be industrially expanding region on the one end, and stagnating, or declining region on the other.
Information booster:
Gunnar Myrdal gave the term cumulative causation in an American Dilemma (1944) Myrdal argued that no region can prosper, without adversely affecting the prosperity of another.