The correct answer is: D. Central Government as per the recommendations of the GST Council.
The GST Council is a body comprising of the Union Finance Minister and the Finance Ministers of all the states. It is responsible for making recommendations to the Central and State Governments on matters related to GST. The Council has the power to recommend the rates of tax to be levied under CGST and SGST. The Central Government is bound to follow the recommendations of the GST Council.
Option A is incorrect because the GST Council is not empowered to take decisions suo moto. It can only make recommendations to the Central and State Governments.
Option B is incorrect because the Central Government is not empowered to take decisions suo moto on the rates of tax to be levied under CGST. It is bound to follow the recommendations of the GST Council.
Option C is incorrect because the State Governments are not empowered to take decisions suo moto on the rates of tax to be levied under SGST. They are bound to follow the recommendations of the GST Council.