If x ^(2) + y ^(2) + (1)/( x ^(2)) + (1)...

If `x ^(2) + y ^(2) + (1)/( x ^(2)) + (1)/ y ^(2) = 4,` then the value of `x ^(2) + y ^(2) ` is :

A

2

B

4

C

8

D

16

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