According to a "union shop agreement," management and unions cannot enter into agreements requiring union membership as a condition of employment

Which of the following is the least expensive source of credit information?

A) Dun & Bradstreet B) Standard & Poor's C) Moody's D) Bond ratings

Which doesn't DBMS allow?

A) creation of database B) classification of database C) modification of database D) updating the database E) retrieval of data