Which of the structure is correct? 1 : struct book { char name[10]; float price; int pages; }; 2 : struct aa { char name[10]; float price; int pages; } 3 : struct aa { char name[10]; float price; int pages; }

• 1 :

  struct book
  { char name[10]; float price; int pages;
  };

• 2 :

  struct aa
  { char name[10]; float price; int pages;
  }

• 3 :

  struct aa
  { char name[10]; float price; int pages;
  }

• A. 1
• B. 2
• C. 3
• D. All of above