Consider the following relational schemes for a library database:Assume {Author, Title} is the key for both schemes. Which of the following statements is true?

Both Book and Collection are in 2NF only

Both Book and Collection are in BCNF

Both Book and Collection are in 3NF only

Book is in 2NF and Collection is in 3NF

Consider the following relational schemes for a library database:Assum

1.	Consider the following relational schemes for a library database:Assume {Author, Title} is the key for both schemes. Which of the following statements is true?
A.	Both Book and Collection are in BCNF
B.	Both Book and Collection are in 3NF only
C.	Book is in 2NF and Collection is in 3NF
D.	Both Book and Collection are in 2NF only
Answer» D. Both Book and Collection are in 2NF only