Question: Consider the following Python program: x = 1; y - 3; z = 5; def subl(): a = 7; Y = 9; z = 11;

Consider the following Python program: x = 1; y - 3; z = 5; def subl(): a = 7; Y = 9; z = 11; def sub2(): global x; a = 13; x = 15; w = 17; def sub3(): nonlocal a; a = 19; b = 21; z = 23; List all the variables, along with the program units where they are declared, that are visible in the bodies of subl, sub2, and sub3, assuming static scoping is used
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