Select the combination of letters that when sequentially placed in the gaps of the given letter series will complete the series.
W _ YZ _ XY _ WX _ Z
1
XXZY
2
XWZY
3
YZXX
4
XYXY
Select the combination of letters that when sequentially placed in the gaps of the given letter series will complete the series.
W _ YZ _ XY _ WX _ Z