Respuesta :
					                   It is D because you need a important detail and A,b, and c doesn’t make sense.
					                
					                
					             Answer:
A) the author
and
B) the book title
Explanation:
I'm pretty sure you supposed to add the author to every book. You must a the book title to every book, how else is anyone suppose to know what book is about with the title?
 
			                   
					                  