$\backslash$table$[[$stafsata$,$branchsle,branchaddress,name,position,bouxsRerrFeak $4],[$S$4555,$B$002,$City Center Plaza, Seattle, WA $98122,$Ellen Layman,Assistant,$16],[$S$4555,$B$004,16-14$th Avenue, Seattle, WA $98128,$Ellen Layman,Assistant,$9],[$S$4612,B002,$City Center Plaza, Seattle, WA $98122,$Dave Sinclair $4,$Assistant,$14],[$S$4612|,$B$004,16-14$th Avenue, Seattle, WA $98128,$Dave Sinclair $4,$Assistant,$10]]$

$($a$)$ Why is this table not in $2$NF$?$

$($b$)$ Describe and illustrate the process of pormalising the data shown in this table to third normal form $(3$NF$).$

$($c$)$ Identify the primary, $($alternate$)$ and foreign keys in your $3NF$ relations.