Answer:
B
Explanation:
AB and CD are the same length, so the construction will be one that shows addition of same-length segments. In choices A and C, XY > YZ. In choice D, XY < YZ. Only choice B shows addition of same-length segments.
As a check, you can compare the length of AB or CD to XY or YZ. You will find they are approximately the same, as they should be.