A file ____________________ is a set of characters that indicates the file type.

The keyboard shortcut for moving to the beginning of a document is Ctrl + ________

A) Home B) Z C) H D) B

Which of the following statements about virtual functions is false?

a. They allow the program to select the correct implementation at execution time. b. They can use either static or dynamic binding, depending on the handles on which the functions are called. c. They do not remain virtual down the inheritance hierarchy. d. They can be called using the dot operator.