For the program below show the output. (for space you can place the four values printed by P1 on the same line.

Assume static scoping

PROGRAM EX1; int i; // global

int A[3]; // global - array starts at 1

PROCEDURE P1( int x, int y)

Begin

y := 2;

PRINT(x); // <- this is where something is OUTPUT

i := 3; PRINT(x); // <- this is where something is OUTPUT

i := 3; PRINT(x); // <- this is where something is OUTPUT

PRINT(y) // <- this is where something is OUTPUT

END;

BEGIN //main

A[1]:= 7; A[2]:= 13; A[3]:= 11;

i := 1;

P1(A[i], i); // first call

P1(i, A[i]); // second call

END.

a) x is passed by value and y is passed by value. _____________________________________

b) x is passed by value and y is passed by name. _____________________________________

c) x is passed by name and y is passed by value. _____________________________________

d) x is passed by name and y is passed by name. _____________________________________