A solid AB has NaCl type structure with edge length $580.4 \mathrm{p}\mathrm{m}.$ The radius of ${\mathrm{A}}^{+}$ is $100 \mathrm{p}\mathrm{m}.$ What is the radius of ${\mathrm{B}}^{-}$ in pm?

• Correct answer
  A

  $190.2$
• B

  $540.13$
• C

  $525$
• D

  $78.12$

Hence, the correct answer is option: 'A'.