What's the purpose of adding editable metadata?

________ is a framework for developers of Mac OS X, containing APIs (application programming interface), libraries, and runtimes

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

?Which of the following syntax is used for a function to return a value?

A. ?return value;function_name(parameters){commands} B. ?functionreturn value;{function_name(parameters)commands} C. function function_name(parameters){commandsreturn value;} D. function_name(parameters){return value;commands}