Q$.$A: Consider following fhree relations

Studerth$(\{$Lname$,$ Fra$$rre$,$ stucitd, Majory$)$

Grarles$($rstuditd Sirstd Gratue$\})$

Courser$\{$fiame$,$ Grsid, points, Depts$)$

You have thiree relations, $($Sudents$,$ Grades and Course$)$ Opthrizs the followirg puerty using optimizaticut heuirstics

StudId,Lname$($s$.$StudID$=$g$.$StudId $^$ g$.$CrsId$=$c$.$CrsId $^$ Grade $=`$A$+\text{'}^$ Major $=`$Math$\text{'}^$ Dept $=`$Comp$\text{'}($Course x Grades$)))$