The correct option is A 1919
Dyarchy, also spelled diarchy, is a system of double government introduced by the Government of India Act (1919) for the provinces of British India. In the Government of India Act 1919, the spheres of the central and provincial governments were demarcated by a division of subjects into “central” and “provincial”. Generally speaking, the central subjects included all subjects directly administered by the Government of India or in which extra-provincial interests were dominant. The provincial subjects included subjects in which the interests of the provinces essentially predominated. Hence, Option A is correct. The Government of India Act 1935 ensured the abolition of provincial dyarchy and the introduction of dyarchy at the centre. In 1895, the Government Grants Act was passed. The Indian Councils Act 1909 or Morley-Minto Reforms or Minto-Morley Reforms was passed by British Parliament in 1909 in an attempt to widen the scope of legislative councils, placate the demands of moderates in Indian National Congress and to increase the participation of Indians the governance. Hence, these options are incorrect.