Consider the following relation specified in relational schema notation and data provided in Excel

BOOK $($ISBN$,$ Book Title, Num Pages, Subject, Publisher ID$,$ Publisher Name, Publisher City, Publisher State$)$

a$.$ If the initial data above is in $1$NF then simply state "the data is already in $1$NF$"$ and explain why. If not already in $1$NF$,$ explain why and make the necessary changes to transform it to $1$NF$.$ Use Excel to create the resulting $1$NF table$($s$)$ including the data. Use relational schema notation to specify the $1$NF relation$($s$).$ Be sure to underline the PK in the relational schema notation.

b$.$ If the $1$NF data from part a is in $2$NF then simply state "the $1$NF data is already in $2$NF$"$ and explain why. If not already in $2$NF$,$ explain why and make the necessary changes to transform it to $2$NF$.$ Use Excel to create the resulting $2$NF table$($s$)$ including the data. Use relational schema notation to specify the $2$NF relation$($s$).$ Be sure to underline the PK in the relational schema notation.

c$.$ If the $2$NF data from part b is in $3$NF then simply state "the $2$NF data is already in $3$NF$"$ and explain why. If not already in $3$NF$,$ explain why and make the necessary changes to transform it to $3$NF$.$ Use Excel to create the resulting $3$NF table$($s$)$ including the data. Use relational schema notation to specify the $3$NF relation$($s$).$ Be sure to underline the PK in the relational schema notation.