Question: Let R and 5 be two given relations. R contains r tuples and Ar attributes, and 5 contains s tuples and As attributes. The minimum

Let R and 5 be two given relations. R contains r tuples and Ar attributes, and 5 contains s tuples and As attributes. The
minimum number of attributes of the 5- R is:
0 a. As-Ar
0 b. Ar-As
O c. Ar
O d. As

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