Question: In a relationship between COURSE and CLASS, COURSE has attributes CRS _ CODE, DEPT _ CODE, and CSR _ DESCRIPTION, and CLASS has CRS _

In a relationship between COURSE and CLASS, COURSE has attributes CRS_CODE, DEPT_CODE, and CSR_DESCRIPTION, and CLASS has CRS_CODE, CLASS_SECTION, CLASS_TIME, and ROOM_CODE. Which attribute would be an example of a foreign key?
CLASS_SECTION
ROOM_CODE
DEPT_CODE
CRS_CODE
In a relationship between COURSE and CLASS, COURSE has attributes CRS_CODE,

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