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Let F(1) be the set of parallelograms F(...

Let `F_(1)` be the set of parallelograms `F_(2)`the set of recteangles `F_(3)` be the set of rhombuses .`F_(4)` be the set of squares and `F_(5)` be the set of trapezium in a plane .Then `F_(1)` may be equal to

A

`F_(2)nnF_(3)`

B

`F_(2)uuF_(3)uuF_(4)`

C

`F_(3)nnF_(4)`

D

none of these

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The correct Answer is:
B
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