QUESTION1 Which function returns a string within a string O Append O Concatenate o Contains O Substring O None of the above QUESTION 2 True/False: The number of arguments that can be passed to a function are limited in most programming languages O True O False QUESTION 3 The function does the same thing as using the mathematical operator. cos abs sqrt round pow QUESTION 4 in the IPO chart the column describes the data that is passed to the function as arguments. Output Function Process nput