Consider the following Python program def foo (a, b, c): a 4 print ('foo', a, b, c) a -bar (c, a) print Ioo',a,b, c) return c def bar (a, c): bmystery (a) print('bar', a, b, c) b mystery (c) return b def mystery (c): ac+ 3 ifc>7: elif c % 3 0: a + 1 return a