_____ is the measure of a system's ability to expand, change, or downsize easily to meet the changing needs of a business enterprise.

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

1) An array is a dynamic data structure. 2) Boxing can be either implicit or explicit. 3) Unboxing can be either implicit or explicit. 4) C# programs must explicitly release dynamically allocated memory. 5) If no memory is available, new throws an OutOfMemoryException.

Default type parameters are allowed only:

a. If the class template also has nontype parameters. b. If the class template does not have any nontype parameters. c. If the class is used as a container class. d. As the rightmost (trailing) parameters in a template’s type-parameter list.