1. [15pt] Choose one best answer for each question.. (1) [3pt] The rule of data independence is that A. all views that are theoretically updatable must be updatable by the system B. all information in the database is to be represented in one and only one way, namely by values in column positions within rows of tables. C. data in different tables must not be related. D. changes that are made to the physical storage representations or access methods must not require changes be made to application programs