Correct Answer & Explanation
Option A
• The pattern followed is that each letter in the word is shifted one position forward in the alphabet.
• K (+1) → L
• E (+1) → F
• Y (+1) → Z
• Applying the same pattern to 'LOCK':
• L (+1) → M
• O (+1) → P
• C (+1) → D
• K (+1) → L
• So, 'LOCK' is coded as 'MPDL'.