Consider the following program: PROCEDURE STOCK IS Y: Float:=8.3; PROCEDURE MU1 IS BEGIN OF MU1 Y:=Y-3.1; END; --OF MU1 PROCEDURE MU2 IS Y. Float:=9.8; BEGIN --OF MU2 END: --OF MU2 PROCEDURE MU3 BEGIN --OF MU3 END; L-OF MU3 BEGIN --OF STOCK --OF STOCK END; Calculate variable Y for two different call sequences: (15) Dynamic scope STOCK calls MU3 which calls MU1 STOCK calls MU2 which calls MU1 (10) Static scope STOCK calls MU3 which calls MU1 . STOCK calls MU2 which calls MU1 B. 7 A DC