Question: Consider the following Table for the entity ENROLL: 1. IS [CLASS_CUDE, CLASS_NAME, SIU_NUM, SIU_NAME] a SUPERKEY? Why? 2. Is [CLASS_CODE, CLASS_NAME, STU_NUM] a Superkey? Why?

Consider the following Table for the entity ENROLL: 1. IS [CLASS_CUDE, CLASS_NAME, SIU_NUM, SIU_NAME] a SUPERKEY? Why? 2. Is [CLASS_CODE, CLASS_NAME, STU_NUM] a Superkey? Why? 3. is [CLASS_CODE, CLASS_NAME, STU_NUM] a Candidate Key? Why? 4. Is [CLASS_CODE, STU_NUM] a Candidate Key? Why

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