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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

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