Answer
Diagram (b) best corresponds to point 3 and point 5
Diagram (c) best corresponds to point 1 and point 4
Diagram (d) best corresponds to point 2
Work Step by Step
Diagram (b)
The two waves are exactly out of phase so the interference will be fully destructive.
Diagram (b) best corresponds to point 3 and point 5
Diagram (c)
The two waves are exactly in phase so the interference will be fully constructive.
Diagram (c) best corresponds to point 1 and point 4
Diagram (d)
The two waves are partly out of phase so the interference will be intermediate.
Diagram (d) best corresponds to point 2