If the definition of the external variable occurs in the source file before its use in a particular function, then there is no need for an declaration in the function.

If the definition of the external variable occurs in the source file b

1.	If the definition of the external variable occurs in the source file before its use in a particular function, then there is no need for an declaration in the function.
Answer» True, When a function is declared inside the source file, that function(local function) get a priority than the extern function. So there is no need to declare a function as extern inside the same source file.