Correct option is D
Information Booster:
The annexation of Oudh was triggered not by long-term strategic planning but by a negative report submitted by the Resident, who was the British official stationed in Lucknow. According to historical records and academic sources: In 1856, based on Lord Dalhousie’s Doctrine of Misrule, Oudh was annexed due to alleged administrative failures by Nawab Wajid Ali Shah.The decision was influenced by the last report submitted by Sir James Outram, the Resident at the Oudh court .