Question: d ) Let R ( A , B , C ) be a relation schema and suppose A is a candidate key of R and

d) Let R(A,B,C) be a relation schema and suppose A is a candidate key of R and
BC is also a candidate key of R. Which of the following is correct about the
number of superkeys of R?
R has 2 superkeys.
AC
R has 3 superkeys.
AB
()R has 4 superkeys.
R has 5 superkeys.
ABC
R has 6 superkeys.
None of the above.
d) Let R(A,B,C) be a relation schema and suppose A is

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