Complete the sentence: A forward declaration is necessary when... a function is called multiple times a function is recursive a function is called before it is defined a function refers to a global variable 7 o/lpoint Select all of the good reasons to create functions in your programs. organization - dividing code into manageable chunks efficiency - code that uses functions tends to be faster than code that does not Selected Answer - Incorrect abstraction - a programmer can use a function without needing to understand every detail of how it works reusability - copy-pasting statements involves repeating yourself, but calling functions does not robustness - functions reduce the likelihood of runtime errors