In the system, someone accidentally stored one of our instructor's name in a reversed order, j = "aij nitsuj" Now, we would like to print out the instructor's first name, Justin (only the 6 alphabets), which of the following code can do so? print(j[4::-1]) print(j[5::-1]) print(j[:-7:-1]) print(j[2] + ][-2:-7:-1]) print(j[5:-1])