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.

Let me give you an 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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The answer to this example can be: a
Here is why: The passage describes the 704th's actions during Operation Market Garden so only information about the operation is needed.

OK. solve this:
Question: How big is the county with the oldest southern diner? Passage:In the U.S., the northernmost is Martha's Diner in Coventry, Vermont. The Miss Wakefield, originally Pat & Bob's in Albany, New York, was built in 1949, rescued from a junkyard there, and trucked to a new home in Sanbornville, New Hampshire. The Summit Diner, a 1938 model, is located in Summit, New Jersey. The oldest Southern diner (nonstainless steel style) is believed to be the Hillsville Diner in Carroll County, Virginia. The Triangle Diner, a 1948 stainless steel O'Mahony original model, is located in the old town of Winchester, Virginia, and is being historically restored to how it appeared in 1948. The Triangle Diner is the oldest stainless steel style O'Mahony diner in Virginia. In 2007 Tommy's Deluxe Diner was moved from Middletown, Rhode Island, to Oakley, Utah, where it opened as the Road Island Diner. One of the original ones displayed at the 1939 New York World's Fair, made by Paramount Diners, is still in operation as the White Mana in Jersey City. Also in Jersey City is the Miss America, a 1942 classic stainless steel model, located next to the New Jersey City University campus. The Shawmut Diner of New Bedford, Massachusetts was donated by its owners to the Bristol County House of Corrections in Dartmouth, Massachusetts and will serve as a training facility for inmates. TJ's (formerly the Point Diner) in Tamaqua, Pennsylvania is a 1940 O'Mahony diner, although its exterior has been renovated and no longer has the stainless metal-look exterior. The diner is located within the Tamaqua Historic District.

Answer:
b