A uniform rectangular block of mass 50 kg is hung horizontally with the help of three wirres A, B and C each of length and area of 2 m and 10 mm² respectively as shown in the figure. The central wire is passing through the centre of gravity and is made of a material of Young's modulus 7.5 × 10¹⁰ Nm^–2 and the other two wires A and C symmetrically placed on either side of the wire B are of Young's
modulus 10¹¹ Nm^–2. The tension in the wires A and B will be in the ratio of

• A

  1 :3

• B

  4 :3

• C

  5 :3

• D

  7 :3