The Partition of Bengal made by Lord Curzon in 1905 lasted until
(a)
the First World War when Indian troops were needed by the British and the partition was ended.
(b)
King George V abrogated Curzon's Act at the Royal Darbar in Delhi in 1911
(c)
Gandhiji launched his Civil Disobedience Movement
(d)
the Partition of India, in 1947 when East Bengal became East Pakistan