To find the odd one out, examine the relationship between each letter and its corresponding number.
Check the position of each letter in the alphabet:
P is the 16th letter of the alphabet → P-16 matches correctly
K is the 11th letter of the alphabet → K-11 matches correctly
M is the 13th letter of the alphabet → M-14 does NOT match (should be M-13)
T is the 20th letter of the alphabet → T-20 matches correctly
The pattern in options 1, 2, and 4 shows each letter paired with its correct alphabetical position.
Option 3 (M-14) is incorrect because M is the 13th letter, not the 14th letter of the alphabet.
Therefore, M-14 is the odd one out.