Unix and Linux systems grant access permissions for each resource using the ______ command.

Suppose a retail business has an unwritten rule that "every sales person cooperates with others."  This is an example of organizational culture. 

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

________ involves reworking programs to make them clearer and easier to maintain while preserving their correctness and functionality.

a. Object-oriented programming b. Refactoring c. Agile software development d. LAMP