a) Write a function named triple whose only parameter is an integer pointer. b) This function triples the value stored at the location pointed by the pointer parameter. c) In the main method, declare an integer variable number and initialize it to 4. Call the function triple from main such that the function will triple the value of num. d) In the main method and after calling the function, print the variable num. e) Specify the output that you will get when you run the program