Study the STUDRECORD spreadsheet below and answer the following questions.

$\backslash$table$[[$STUDENT$\_$ID$,$COURSE ID$,$ENROLL DATE,COURSE NAME,DEPARTMENT$\_$CODE,DEPARTMENT$\_$NAME,GRADE,COURSE$\_$FEE$],[001,$CS$101,2023-09-01,\backslash$table$[[$Introduction to$],[$CS$]],$CS$,$Computer Science,A$,500],[002,$MATH$201,2023-09-03,$Calculus,MATH,Mathematics,B$+,600],[003,$ENG$101,2023-09-05,$English C$,$ENG,English,A$-,450],[004,$BI$0101,2023-09-10,$Biology,BIO,Biology,B$,550],[005,$HIS$101,2023-09-15,$World History,HIS,History,C$+,400]]$

Convert the spreadsheet to $1NF$ and write the relational schema. You can assume that the table does not contain repeating groups and that any STUDENT$\_$ID may reference more than one COURSE$\_$NAME.

$($Hint$.$ This table uses a composite primary key.$)$

$($Show all primary key attributes using $\{PK\}$ after the attribute name eg EmpNum$\{$PK$\})$