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.

[Q]: Question: Who is the mayor of the town Archer was born in? Passage:Born in Densmore, Kansas, Archer moved to Topeka, Kansas where he attended public high school. Archer received a Bachelor of Arts degree in English literature from Yale University in 1952 and a Juris Doctor, with honors, from George Washington University Law School in 1954. He served as a First Lieutenant in the Judge Advocate General's Office of the United States Air Force from 1954 to 1956. He entered private practice in Washington, D.C., as an associate in the law firm of Hamel, Park, McCabe and Saunders from 1956 to 1960 and a partner from 1960 to 1981. Archer served as Assistant Attorney General in charge of the United States Department of Justice Tax Division from 1982 to 1984.

[A]: a


[Q]: Question: How many teams were in Macedonian First League? Passage:He was born in Ohrid. After playing in the youth teams of FK Partizan, he begin his senior career playing with another Serbian club FK Dinamo Vranje. In 2007, he returned to Macedonia and signed with Macedonian First League club FK Pobeda where he stayed two seasons. In summer 2009 he moved to FK Olimpik Sarajevo playing in the Premier League of Bosnia and Herzegovina, but next winter he moved to Slovenia, to NK Krško. Since January 2011 he will play with FK Metalurg Skopje in the Macedonian First League. In summer 2011 he moved to Albania, where he represented two clubs during the 2011–12 Albanian Superliga season, KS Pogradeci and Shkumbini Peqin. In summer 2012 he moved to Greece and joined Football League side Anagennisi Epanomi F.C.. He play now in 3 Swiss league for Old Boys.

[A]: a


[Q]: Question: Where was McMahon's post-doctoral mentor from? Passage:McMahon contributed to the understanding of retinal neurophysiology alongside his post-doctoral mentor, John E. Dowling. His early research focused on ion channels that mediate transmission at electrical and glutamatergic synapses and the modulatory effects of dopamine and nitric oxide on retinal synapse networks. Through studies with zebrafish he discovered that the neurotransmitter dopamine decreases the electrical coupling within horizontal cells. Further research showed that it was the increase of cAMP within the cell resulting from dopamine binding to AMPA receptor that led to this decrease in coupling. McMahon and his colleagues also demonstrated that exogenous nitric oxide and zinc can modulate AMPA receptor mediated synaptic transmission at gap junctions in hybrid bass retinal neurons.

[A]:
a