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ABCD is a parallelogram where AC and BD ...

ABCD is a parallelogram where AC and BD are the diagonals. If `/_ BAD = 60^(@), /_ ABD = 90^(@)`, then what is `BD^(2) ` equal to ?

A

A)`( 3)/( 5) AB^(2)`

B

B)` 3 AB^(2)`

C

C)`( 1)/( 2) AB^(2)`

D

D)`( 2)/( 3) AB^(2)`

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