Word formation from letters of DICTIONARY Which ONE of the following words can be formed from “DICTIONARY”, using each letter at most once?

Introduction / Context:We need the single formable option.

Given Data / Assumptions:

• Source: DICTIONARY ⇒ letters D,I×2,C,T,O,N,A,R,Y.

Concept / Approach:Eliminate options that require absent letters or higher counts than available.

Step-by-Step Solution:“DAIRY”: D,A,I,R,Y ⇒ all present.“NATION” needs N×1 (ok) but typically requires two N? (NATION is N,A,T,I,O,N: N×2); DICTIONARY has N×1 ⇒ cannot be formed.“ADDITION” needs D×2 (source has D×1) ⇒ cannot be formed.“BINARY” needs B (absent) ⇒ cannot be formed.

Verification / Alternative check:Re-count D,N,B to confirm the eliminations.

Why Other Options Are Wrong:They demand letters or counts not available in the source.

Common Pitfalls:Overlooking invisible constraints like the second N or second D.

Final Answer:DAIRY