Table$3($E$,$ A$,$ B$,$ C$1,$D$1,$C$2,$D$2,$C$3,$D$3)$

Note that the following table as is can have from $1$ up to $3$ matched pairs of C and D values $($multiples$...$ grouped together... hmmm...$),$ and many times, some of the pairs are NULL. There is a need to restructure to obtain $1$NF$.$ The only dependency is based on the key, E$,$ and C doesnot determine D$.$ In other words, each value of E determines one or more values of C$,$ and one or more values of D$.$

a$.$ Identify the normal form of the table $($unnormalized$,1$NF$,2$NF$,3$NF$)$ and what properties exist that prevent it from being in $3$NF $($multiply occurring groups, partial dependencies, transitive dependencies$).$

b$.$ Perform the necessary changes to remove the properties identified in a$,$ identifying each step taken. Provide the final table$($s$)$ in $3$NF$.$