Consider the schema R (A, B, C, D) and the functional dependencies  A → B and C → D. If the decomposition is made as R1 (A, B) and R2 (C, D), then which of the following is TRUE ?

1
Preserves dependency but cannot perform lossless join
2
Preserves dependency and performs lossless join
3
Does not preserve dependency and cannot perform lossless join 
4
Does not preserve dependency but performs lossless join

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