VT
MQ
PR
DF E. FG
Answer is Wrong!
Answer is Right!
The answer is D. DF.
The other options are all pairs of letters that are next to each other on the alphabet. DF is the only pair of letters that is not next to each other on the alphabet.
A. VT: V is the 22nd letter of the alphabet and T is the 20th letter of the alphabet.
B. MQ: M is the 13th letter of the alphabet and Q is the 17th letter of the alphabet.
C. PR: P is the 16th letter of the alphabet and R is the 18th letter of the alphabet.
E. FG: F is the 6th letter of the alphabet and G is the 7th letter of the alphabet.