Question: 5. Consider the following program in JavaScript-like syntax; assume DYNAMIC scoping is used. 010 020 030 040 050 060 070 080 090 100 110 120

5. Consider the following program in JavaScript-like syntax; assume DYNAMIC scoping is used. 010 020 030 040 050 060 070 080 090 100 110 120 130 140 150 // main program var x, y, z; function sub10 { var a, y, z; // BODY OF SUB1 } function sub20 { var a, b, z; // BODY OF SUB2 } function sub30 var a, x, w; // BODY OF SUB3 } Assuming dynamic scoping and given the call sequences specified below, list all variables visible during the execution of the last function called, along with the line numbers where they are declared. a) main > subl > sub2 > sub3 b) main > subl > sub3 c) main > sub2 > sub3 > sub1 d) main > sub3 > sub1 e) main > subl > sub3 > sub2 f) main > sub3 > sub2 > subl

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