onsider this standard for AT&T. For billing errors, it seeks to have no more than one error per customer per a 10-year period across its one million customers. To achieve this standard, it uses a sophisticated computer system to monitor calls each day immediately after they are made. In this situation, AT&T is using _______ control and it is seeking to achieve a ______ standard in terms of difficulty. Question 12 options: A) concurrent, tight B) concurrent, loose C) feedback, loose D) preliminary, tight E) concurrent, tight F) feedback, tight