HELP! Jason can't find his textbook! It is two days before the test date, and Jason's textbooks are all out of order! Help him sort a list (ArrayList in java) full of textbooks by subject, so he can study before the test.
The sorting should **NOT** be case sensitive
def sorter(*textbooks):
    for textbook in textbooks:
        print(textbook.sort(key=str.lower))
    return textbook
def sorter(*textbooks):
    for textbook in textbooks:
        print(textbook.sort(key=str.lower))
    return textbook