Final answer:
In the dilation of rectangle WXYZ to create W'X'Y'Z', the length of W'X' is 0.5 units.
The correct answer is A.
Step-by-step explanation:
In the dilation of rectangle WXYZ to create W'X'Y'Z', the length of W'X' can be found using the scale factor of the dilation. The scale factor represents the ratio of the corresponding sides of the two rectangles.
If the scale factor of the dilation is 0.5, it means that the corresponding sides of the two rectangles are reduced by half. Since the length of W'X' is the same as the length of WZ, and the length of WZ is reduced by half, the length of W'X' is 0.5 times the length of WZ.
Therefore, the length of W'X' in this dilation is 0.5 units.