Which of the following below statement is true?a.Super key attribute set ⊂ candidate key attribute setb.Super key attribute set ⊃ candidate key attribute setc.Super key attribute set ⊇ candidate key attribute setd.Super key attribute set ⊄ candidate key attribute set

Which of the following statements is true?Group of answer choicesEvery super key is a candidate key.An alternate key is a super key with redundant attributes.A composite key cannot be a primary keyEvery candidate key is a super key.

Which of the following statements are TRUE?All superkeys are candidate keysAll candidate keys are superkeysA foreign key can be a primary keyAll superkeys are primary key

Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?Question 1Answera.Super keyb.Candidate keyc.Foreign keyd.Sub key

Question: How many of the following statements are true? 1)It is possible to have two candidate keys with different numbers of attributes. 2) A composite key has more than 1 attribute. 3) The computer picks the primary key used in the design. 4) A relationship has a primary key. 5) An attribute has a primary key. A) 0 B) 1 C) 2 D) 3 E) 4

If a proper subset of X is a superkey, then X cannot be a key.Question 4Select one:TrueFalse