In most cases, the alignment of multiple-column text should be ________

Which statement is false?

a. The actual data representation used within the class is of no concern to the class’s clients. b. Clients generally care about what the class does but not how the class does it. c. Clients are usually involved in a class’s implementation. d. Hiding the implementation reduces the possibility that clients will become dependent on class-implementation details.

A maintenance model is intended to focus ongoing maintenance efforts so as to keep systems usable and secure.

Answer the following statement true (T) or false (F)