How is passing the element arr[5] different from passing the name, arr, to a function? Explain whether the function can change the contents of arr defi ned in the caller. Explain the circumstances...

How is passing the element arr[5] different from passing the name, arr, to a function?

Explain whether the function can change the contents of arr defi ned in the caller.

Explain the circumstances that determine whether a variable is declared before main, inside

main or after main.