Assume there is a relation Books

Books $\{$ pub$\_$id$,$ auth$\_$id$,$ publisher$\_$name, author$\_$name$\}$ with the set of functional dependencies: pub$\_$id $-$ publisher$\_$name auth

$\_$Id $-$ author$\_$name

Identify the best normal form that Books relation satisfies.

Select one:

$1$NF

$2$NF

$3$NF

$$BCNF