The moment of inertia of a thin square plate ABCD of uniform thickness about an axis passing through the centre O and perpendicular to the plate is:

(i) I₁ + I₂ 
(ii) I₃ + I₄
(iii) I₁+ I₃ 
(iv) I₁ + I₂+ I₃ + I₄
where I₁ ,I₂, I₃ and l₄ are respectively the moments of inertia
about axes 1,2,3 and 4 which are in the plane of the plate.

• A

  (i, ii)

• B

  (ii, iii)

• C

  (i, iv)

• D

  (i, ii, iii)