If in a certain code the word "DAUGHTER" is written as "TERDAUGH" by moving the last three letters to the front, then how will "APTITUDE" be written using the same operation?

Introduction / Context:
This tests recognition of a rotation operation: relocating a fixed block of letters from the end of a word to its beginning.

Given Data / Assumptions:

• DAUGHTER -> TERDAUGH
• Operation: take the last three letters and place them at the front.
• Apply to APTITUDE.

Concept / Approach:
For a word W = X Y Z where Z are the last three letters, the coded form is Z X Y.

Step-by-Step Solution:
APTITUDE -> last three letters = U D E.Move UDE to front, leave the rest A P T I T unchanged.Result: UDEAPTIT.

Verification / Alternative check:
Applying the inverse (moving first three to end) returns the original, confirming correctness.

Why Other Options Are Wrong:

• DEUAPTIT / DUEAPTIT: these permute the last-three block incorrectly.
• DAUEPTIT: intermixes the block with the original middle letters.
• None of these: Not needed since UDEAPTIT is valid.

Common Pitfalls:
Reversing the last-three block or moving four letters by mistake.

Final Answer:
UDEAPTIT