1) Some ferrets and some sharks 
A business school is a university-level institution that confers degrees in business administration or management. Such a school can also be known as a business college, college of business, college of business administration, school of business, school of business administration, or, colloquially, b-school or biz school. A business school teaches...
[n] - a graduate school offering study leading to a Masters of Business Administration
noun a graduate school offering study leading to a degree of Master in Business Administration