下列程序的运行结果为（ ）。#include＜iostream．h＞class Location {protected：int X，Y；publiC：void SeX(int myx){X=myx；}void SetY(int myy){Y=myy；}void showxy( ) {cout＜＜ X= ＜＜X＜＜ ＜＜ Y =＜＜ Y＜＜endl；} }；Class Rectangle ：public Location{private：int H，W；public：void SetH(int myh){H=myh；}void SetW(int myw) {W=myw；}void show( ) {cout ＜＜ X= ＜＜X＜＜ ＜＜ Y= ＜＜ ＜＜Y＜＜ ＜＜ H= ＜＜ H＜＜ ＜＜ W= ＜＜W＜＜endl；} }；void main( ){ Rectangle r1；r1．SetX(3)；r1．SetY(5)；r1．SetH(4)；r1．SetW(6)；r1．showxy( )；r1. show( )；}
A． ThisForm．Text1．Value
B． ThisForm．Parent．Value
C． Parent．Text1．Value
D． This．Parent．Text1．Value