设有如下说明 typedef struct {int n;char c;double x;}STD; 则有以下选项，能正确定义结构体数组并赋初值的语句是

A．STD tt[2]＝{{1,'A',62},{2,'B',75}};
B．STD tt[2]=“1,"A",62,2,"B",75};
C．struc tt[2]＝{{1,'A'},{2,'B'}};
D．struct tt[2]=＜＜1,"A",62.5},{2,"B",75.0}};