Consider the following JavaScript program:

List all the variables, along with the program units where they are declared, that are visible in the bodies of sub1, sub2, and sub3, assuming static scoping is used.

Transcribed Image Text:

var x, y, z; function subl () { var a, y, z; function sub2 () { var a, b, z; function sub3 () { var a, x, w;