(a) Powers of Prime Minister are as follow - He has the power of selecting other Ministers and also of advising the President to dismiss anyone of them individually or require anyone of them to resign. Virtually, the Ministers hold office at the pleasure of the Prime Minister. - The Prime Minister takes decisions with regard to assignment of various ministries to individual ministers. He may transfer a Minister from one department to another. - The Prime Minister stands between the President and the Cabinet. Communications relating to policy are made only through the Prime Minister. Hence, option (a) is correct.