Definition: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: How old was Arthur Wellesley, Marquess of Wellington when Kempt joined his army in Spain? Passage:Employed from 1807 to 1811 on the staff in North America, Brevet-Colonel Kempt at the end of 1811 joined Arthur Wellesley, Marquess of Wellington's army in Spain with the local rank of major general, which was, on 1 January 1812, made substantive. As one of Thomas Picton's brigadiers, Kempt took part in the great assault on Badajoz and was severely wounded. On rejoining for duty, he was posted to the command of a brigade of the Light Division (43rd Regiment of Foot, 95th Rifles, and 3rd Portuguese Light Infantry) in time to fight at the Battle of Vitoria on 21 June 1813. He also led his brigade at the Battle of the Pyrenees at the end of July, and at the Battle of the Bidassoa, where his troops stormed French defenses near Mont La Rhune on 7 October. While still commanding his brigade at the Battle of Nivelle on 10 November, he was again wounded. In 1814, he led his brigade at the battles of Orthez and Toulouse.


b