若有以下程序 #include char *a="you"; char b[ ]="Welcome you to China!"; main() { int i, j=0; char *p; for ( i=0; b[i] !='\0'; i++ ) { if (*a == b[i]) { p=a; for (j=i; *p!='\0'; j++) { if (*p != b[j]) break; p++; } if (*p=='\0') break; } } printf("%s", &b[i]);}则程序的输出结果是( )

A. China!
B. to China!
C. me you to China!
D. you to China!