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.
One example: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lo during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
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Solution is here: a
Explanation: The passage describes the 704th's actions during Operation Market Garden so only information about the operation is needed.

Now, solve this: Question: Did Robertson return to Australia after his tour with the 1st Cavalry Brigade? Passage:Afterwards, Robertson went on to attend a series of shorter training courses in Britain. He attended the School of Musketry at Hythe, Kent; the Machine Gun School at Netheravon, Wiltshire; the Artillery College at Woolwich; the Anti-Gas School at Porton Down; the Anti-Aircraft School at Westerham, Kent; and the Royal Tank Corps School at Woolwich. He returned to Australia in 1925 to become Chief Instructor at the Small Arms School at Randwick, New South Wales in 1926. Following the retirement of General Sir Harry Chauvel in 1930, Robertson was posted to the 7th Infantry Brigade as its brigade major. In 1931 he became brigade major of the 1st Cavalry Brigade in Queensland. He returned to Sydney in February 1934 as General Staff Officer (Grade 2) at the 2nd District Base. In June 1934, he was appointed Director of Military Art at the Royal Military College, which had been transferred to Victoria Barracks, Sydney, as a cost-cutting measure during the Great Depression. It returned to Canberra in 1937, and Robertson returned with it.

Solution:
b