下列语句段中，正确的是( )。

A) struct


int x;


float y;


int a[2];


unsigned b[3];


char name[10];


;
B) structstu


unsigneda[3];


unsigned b[4];


x;


int*p=&x.a;
C) struc tsu


int a;


float x[4];


y=1,1.0;


floatdat a=y.x;
D) stmct nd


int a,b;


unsigned c[2]=5;


;