The square structure shown in figure consists of four point masses connected by rods of negligible mass. Mark the CORRECT option regarding the moment of inertia of the structure about the following axes:

Options

• Option A

  Axis A, through the centre and normal to the plane: I about A = ma²

• Option B

  Axis B, through one point mass and normal to the plane: I about B = 3ma²

• Option C

  Axis CC′, through two adjacent point masses: I about CC′ = 2ma²

• Option D

  Axis DD′, along the diagonal: I about DD′ = 2ma²