$1)$ For the following relation, what attribute$($s$)$ would you select as the primary key? $(2$ pts$)$ Explain your answer. $(4$ pts$).$ Suppose an employee can only work in multiple employees.Employee NameEmployee IDBranch IDBranch LocationKate Smith$10101$LondonEric Green$12302$NYAmee White$11504$HoustonJane Lee$11903$LA$2)$ Find the precise form $($e$.$g$.$ UNF, $1$N$,2$NF$,$ or $3$NF$)$ of the relation $(2$ pts$)\mathrm{.}3)$ If the relation is in $3$NF$,$ explain why; if it's not, normalize it to $3$NF $(6$ pts$).$ You don't have to copy the data in the table; just write the schemas.