The Partition of Bengal was annulled on ___________ ?

A. 11 December 1911
B. 12 December 1911
C. 13 December 1912
D. 14 December 1912

On 12th December 1911, the new viceroy Lord Hardings announce to cancel the partition of bengal at Dehli Darbar. British told that, it was their independent decision but actually british were in pressure of Congress and hindus, due to this decision Hindus were happy and it was political setback for Muslims.