Which one of the following Acts of British India gave further emphasis to the Viceroy's authority over his executive council through departmental or departmental system instead of collective functioning?

• A. इंडियन काउंसिल एक्ट, 1892
• B. गवर्नमेंट ऑफ इंडिया एक्ट, 1858
• C. इंडियन काउंसिल एक्ट, 1909
• D. इंडियन काउंसिल एक्ट, 1861