A procedure (function) can have four different effects, depending on whether arguments are passed by value, by reference, by value/result, or by name. Given the following program, what will be the results of i, a[1], and a[2] after procedure foo executed using each of the argument passing scheme? procedure foo (x, y, z) x=x+1 y := z z = z+1 i=1; a[1]=5; a[2] := 6 foo (i, a[i], i) print(i, a[1], a[2])