Which of the two have almost similar soz...

Which of the two have almost similar soze

A

`._(22)Ti` and `._(40)Zr`

B

`._(41)Nb` and `._(73)Ta`

C

`._(39)Y` and `._(57)La`

D

`._(20)Ca` and `._(31)Ir`

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The correct Answer is:

B

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