EduGoog
Choose or find odd pair of words

(Stamp : Letter) , (Ticket : Train) , (Ink : Pen) , (Cae : Engine)

Option:
A. Stamp : Letter
B. Ticket : Train
C. Ink : Pen
D. Cae : Engine
Answer: D . Cae : Engine

Justification: In all other pairs, first is essentially required to use the second.

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