Verbal Reasoning - Analogy

Directions to Solve
In each of the following questions find out the alternative which will replace the question mark.

21.
ABCD : WXYZ :: EFGH : ?
STUV
ZYXW
VUTS
WXZY
Answer: Option
Explanation:

22.
QIOK : MMKO :: YAWC : ?
UESG
USGA
VUES
SUEG
Answer: Option
Explanation: