Correct option is C

KPLO
K (11th letter) ↔ P (16th letter): Opposites in the alphabet.
L (12th letter) ↔ O (15th letter): Opposites in the alphabet.
AZBY
A (1st letter) ↔ Z (26th letter): Opposites in the alphabet.
B (2nd letter) ↔ Y (25th letter): Opposites in the alphabet.
UVFE
U (21st letter) ↔ V (22nd letter): Not opposites in the alphabet.
F (6th letter) ↔ E (5th letter): Not opposites in the alphabet.
FUGT
F (6th letter) ↔ U (21st letter): Opposites in the alphabet.
G (7th letter) ↔ T (20th letter): Opposites in the alphabet.
Conclusion: all option is opposite letter except UVFE.