运行下面程序时，从键盘输入字母h，则输出结果是()。
#inCluDE
mAin()
ChAr Ch;
Ch=gEtChAr();
switCh(Ch)
CAsE ’h’：printF("hEllo!\n");
CAsE ’g’：printF("gooD morning\n");
DEFAult：printF("ByEByE!\n");
A．hEllo!
B．hEllo!gooD moring!
C．hEllo!gooD morning!ByEByE!
D．hEllo!ByEByE!