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Three solids sphere each of mass m and diameter d are stuck together such that the lines connecting the centers from an equilateral triangle of side of length d. The ratio `I_(0)/I_(A)` of moment of inertia `I_(0)` of the system about an axis passing the centroid and about center of any of the spheres `I_(A)` and perpendicular to the plane of the triangle is

A

`13/23`

B

`23/13`

C

`13/15`

D

`15/13`

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