Suppose the following functional dependencies hold on a relation U with attributes P, Q, R, S, and T:P → QRRS → TWhich of the following functional dependencies can be inferred from the above functional dependencies?

Suppose the following functional dependencies hold on a relation U wit

1.	Suppose the following functional dependencies hold on a relation U with attributes P, Q, R, S, and T:P → QRRS → TWhich of the following functional dependencies can be inferred from the above functional dependencies?
A.	P → R
B.	PS → T
C.	R → T
D.	PS → Q
Answer» B. PS → T