Q3) Consider the following program segment program mam; Var A,B,C: real; procedure Sl(A: real); Var D: real; begin SI; call S2 (B); statementl end si; procedure S2(C: real); Var D, B: real; begin S2; statement2 end S2; begin main; call Sl(A); end main A. Give the run time representation of main B. Give the referencing environment for SI. C. Assuming static scope, give the implementation of the referencing environment at statement1 D. (Assuming dynamic scope, give the implementation of the referencing environment at I statement2