What is a question about this article? If the question is unanswerable, say "unanswerable".

Named one of the best business schools in the Midwest by Princeton Review, the KU School of Business has been continually accredited by the Association to Advance Collegiate Schools of Business (AACSB) for both its undergraduate and graduate programs in business and accounting.

By what acronym is the Association to Advance Collegiate Schools of Business known?
AACSB