假定有“struct BOOK{char title[40]; float price;}; struct BOOK book;”，则不正确的语句为（ ）。
单选题 (2 分) 2分
A.
struct BOOK *x=malloc(book);

B.
struct BOOK x={"C++ Programming",27.0};

C.
struct BOOK *x=malloc(sizeof(struct BOOK));

D.
struct BOOK *x=&book;