Table $1-$ Courses Taken Table

Class$\_$ID ClassName ClassCreditHours StudentID StudentName Grade

C$111$ Math$14$ S$111$ Jim Smith Pass

C$111$ Math$14$ S$222$ Sally Smith Pass

C$222$ English$14$ S$333$ Megan Moore Pass

C$333$ History$13$ S$444$ Patrick Clark Fail

C$333$ History$13$ S$555$ Lisa Clark Pass

C$333$ History$13$ S$666$ Tom Clark Pass

C$444$ History$23$ S$111$ Jim Smith Pass

C$444$ History$23$ S$222$ Sally Smith Fail

C$555$ History$33$ S$777$ Bo Lewis Pass

$1.$ Is the Courses Taken table above in $1$st normal form? If not, what changes are needed to convert it to $1$NF$?$

$2.$ Is the Courses Taken table in $2$nd normal form? If not, describe the changes needed to comply with the requirements for $2$NF$?$ Be specific.

$3.$ Lastly, is the Courses Taken table in $3$NF$?$ If not, in addition to the changes you have described in questions $1$ & $2,$ what additional changes would be needed to assure compliance with $3$NF$?$ Be specific.