Given the following code, which of the following variables m…

Given the following code, which of the following variables may only be accessed in function_1? def function_1(a):      print(a * 2)      return a / 2 def function_2(b):      print(b + 2)      return b + 2 x = 12y = function_2(x)print(y)z = function_1(y)print(z)