There are exempted from the computation of the amount of the sales tax the gross receipts from the sale of any tangible personal property to:
A. The United States, its unincorporated agencies and instrumentalities;
B. Any incorporated agency or instrumentality of the United States wholly owned by the United States or by a corporation wholly owned by the United States;
C. The State of Nevada, its unincorporated agencies and instrumentalities;
D. Any county, city, district or other political subdivision of this State;
E. Any organization created for religious, charitable or eleemosynary purposes, provided that no part of the net earnings of any such organization inures to the benefit of any private shareholder or individual. (Ord. 106 §5(S), 1989)