The correct options are
A R1={(x,y)∣y=2+x,x∈X,y∈Y}
C R3={(1,1),(1,3),(3,5),(4,7),(5,7)}
D R4={(1,3),(2,5),(3,4),(4,9)}
R1 is not a function from X to Y, because there are no images of 2,4 present in Y
R3 is not a function from X to Y, because there are two images of 1 present in Y
R4 is not a function from X to Y, because 4 is not present in Y and the image is 5 is not defined