GATE | GATE CS 1997 | Question 33

Given the following Pascal-like program segment

Procedure A;
  x,y:integer;
   Procedure B;
    x,z:real
    S1
   end B;
   Procedure C;
      i:integer;
       S2
   end C;
end A;

The variables accessible in S1 and S2 are
(A) x of A, y, x of B and z in S1 and x of B, y and i in S2
(B) x of B, y and z in S1 and x of B, i and z in S2
(C) x of B, z and y in S1 and x of A, i and y in S2
(D) None of the above

Answer: (C)
Explanation:
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