Consider this very simple function: def cube(x):answer = x * x * xreturn answer a) What does this function do?b) Show how a program could use this function to print the value of y3, assuming y is a variable.c) Here is a fragment of a program that uses this function:answer = 4result = cube(3)print(answer, result)The output from this fragment is 4 27. Explain why the output is not27 27, even though cube seems to change the value of answer to 27.

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