What type of operation can be performed on a package that hasbeen built and saved for furtheruse?
a. edited
b. scheduled for execution
c. password protected
d. retrieved by version
e. all of the above

Password protected

Explanation: Package is the namespace which carries the set of all the related classes and related interfaces. Package class has the right to access the package members. If a package is built and is kept for the future use then it should be made secured so there can be no unauthorized access of the class that package contains,therefore it should be password protected. This will help the class and the members to be in security an can be accessed by authority in future.

i think the answer is a or d