Which of the Following Is NOT True About Packages

Multiple Choice

Which of the following is NOT true about packages?

A) a package can contain other packages
B) a package's name must be the same as the directory that contains all of the classes in the package
C) a Java source file that is part of a named package must contain a statement at the top of the file that contains the keyword package and the name of the package
D) all classes in a package are available to clients of the package