Consider the following pseudo code. Procedure P (A, B: real) X: real Procedure Q (B, C: real) Y: real . Procedure R (A, C: real) Z: real . — (*) .

Consider the following pseudo code.Procedure P (A, B: real)X: realProcedure Q (B, C: real)Y: real. . .Procedure R (A, C: real)Z: real. . . –– (*). . .Assuming static scope, what is the referencing environment at the location marked by (*)?