Typically, information systems planning is not tied to overall strategic planning.?

You should make a function a virtual function if

a. every class that is derived from this class use all the member functions from this class. b. every class that is derived from this class needs to re-define this function. c. that function is an operator d. only in the derived classes

If a function does not have an exception specification, then the function can thaw _______ exceptions.

Fill in the blank(s) with the appropriate word(s).