A copy is made of a variable when you call by reference address copy value The return type void indicates that the function will return__. the null address an integer more than one value nothing Which of the following appear in a function header (the first line of a function definition/implementation)? C The function name, return data type, and argument data types. O The function name, return data type, argument data types, and argument names. The function name, return data type, and argument names I want to pass an int to a function. I want the function to change the value of my int. I will do a call by reference C call by value C call by address call by parameter A function prototype can not include argument names not end with a semi-colon be coded before the function bodv be coded below the main routine