Definition: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: In which state did Powell earn his M.A. and Ph.D in economics? Passage:Benjamin Powell earned his B.S. in Economics and Finance from the University of Massachusetts Lowell and his M.A. and Ph.D. in economics from George Mason University. He is a Professor of Business Economics at Texas Tech University's Rawls College of Business and the director of the Free Market Institute at Texas Tech University. Previously, he was an Associate Professor of Economics at Suffolk University and an Assistant Professor of Economics at San Jose State University. He has performed numerous other professional roles in the past including Director of the Center on Entrepreneurial Innovation at the Independent Institute., President of Association of Private Enterprise Education, North American Editor of the Review of Austrian Economics, Senior Economist at the Beacon Hill Institute, Editorial Board Member at the Journal of Private Enterprise, and host and co-executive producer of KTTZ Channel 5 Lubbock's—a PBS affiliate—Free to Exchange.


b