C. Business and industry relations.

A meeting of an effective majority of a public body to discuss business and industry relations, including plans for attracting business, is required to be open to the public unless the discussions involve (i) purchase or lease or acquisition of real property with public funds, or (ii) contract negotiations, or (iii) where the release of information would impair the right to receive federal funds. See N.J.S.A. 10:4-12b(2),(5) and (7).