Horst Feistel of IBM created the_______ algorithm, which was chosen as the DES by the United States government and the National Security Agency (NSA) in the 1970s.

Class members specified as___________ are accessible only to member functions of the class and friends of the class.

Fill in the blank(s) with the appropriate word(s).

The ____ command lists all tables in the default database.

A. SHOW TABLES B. DISPLAY TABLES C. VIEW TABLES D. LIST TABLES