1.

Let R={(1,b),(3,d),(2,b)} and S={(b,4),(2,5),(d,a)} be a relation then R composition S=____.

A. {(1,b),(3,d),(2,b)}
B. {(1,4),(3,a),(2,4)}
C. {(4,b),(2,5),(3,a)}
D. {(1,d),(3,b),(2,c)}
Answer» C. {(4,b),(2,5),(3,a)}


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