Why did Gandhi consider non-cooperation a path to swaraj?

Correct answer: Because British rule depended on Indian cooperation

Gandhi argued that colonial rule was sustained not only by British officials and force but also by the cooperation of Indian subjects who used its institutions, purchased its goods or accepted its authority. If people withdrew that cooperation through peaceful boycott and self-discipline, the system would lose much of its practical support. Thus option A explains why non-cooperation was seen as a route to swaraj; the other options reject or distort this reasoning.