Extracted text: Let R(A,B,C,D,E,F,G) be a relation with FDs F= {C→ EF, EG-→ D, DG→ A, A→ B} that hold on R. Which of the following is a 3NF decomposition of R that is lossless and dependency preserving? Select one: O R1(A, B, D, G), R2(D, E, G) and R3(C, E, F) None of the four decompositions. R1(A, D, E, G), R2(A, B, C, E, F) R1(D, E, G), R2(A, D, G), R3(A, B) and R4(C, E, F) O All of the four decompositions. O R1(A, D. E. G), R2(A, B) and R3(C, E, F)