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Observe the following Python code?
def a(n): if n == 0: return 0 else: return n*a(n - 1)def b(n, tot): if n == 0: return tot else: return b(n-2, tot-2)

Observe the following Python code?

def a(n): if n == 0: return 0 else: return n*a(n - 1)def b(n, tot): if n == 0: return tot else: return b(n-2, tot-2)
Correct Answer b() is tail recursive but a() isn't

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