$2.$ Normalize the following table up to $3$NF$.$ Show all results after

a$.)\backslash (1$ N F $\backslash )$

b$.)2$ NF

c$.)3$ NF

State the keys in each case

$\backslash$begin$\{$tabular$\}\{|$c$|$c$|$c$|$c$|$c$|$c$|\}$

$\backslash$hline StudentID & Name & DOB & Subject & Grade & SubjectCode $\backslash \backslash$

$\backslash$hline $123$ & Adrian Whyte & $\backslash (27/7/77\backslash )$ & Info Tech & $78$ & IT $\backslash \backslash$

& & & Mathematics & $95$ & MT $\backslash \backslash$

& & & English & $87$ & En $\backslash \backslash$

$\backslash$hline $145$ & Patrice Kerr & $\backslash$multirow$\{2\}\{*\}\{\backslash (8/2/84\backslash )\}$ & Physics & $88$ & Ph $\backslash \backslash$

& & & Mathematics & $65$ & MT $\backslash \backslash$

& & & Spanish & $78$ & SP $\backslash \backslash$

$\backslash$hline $150$ & Damion Kelly & $\backslash (3/4/65\backslash )$ & Info Tech & $50$ & IT $\backslash \backslash$

& & & Mathematics & $80$ & MT $\backslash \backslash$

& & & English & $90$ & En $\backslash \backslash$

$\backslash$hline

$\backslash$end$\{$tabular$\}$