1. If a relation R is decomposed into {R1, R2, ..., Rn} and the decomposition is lossless then
(a) The natural join of R1, R2, ..., Rn can have more tuples than the original relation for R
(b) The relations R1, R2, ...,Rn are each in 3rd Normal Form
(c) The natural join of R1, R2,..., Rn will have the same number of tuples as the original relation R
(d) None of the above
2.The functional dependency {A} → {B} for relation schema R(A,B,C,D) implies that
(a) No two tuples in R can have the same value for attribute B
(b) Any two tuples in R that have the same value for B must have the same value for A
(c) No two tuples in R can have the same value for attribute A
(d) Any two tuples in R that have the same value for A must have the same value for B