Four options have been given out of which three are alike in some manner, while one is different. Choose the odd one.
Every Number other than Option A are Square of Adjacent Number(Near Number)
Option B -49-64 (7-8)
Option C -4-9 (2-3)
Option D -25-36 (5-6)
But Option A - Squares are not Adjacent Squares-16-81 (4-9). 4 is far from 9. Hence Option A is Odd one.
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