‘What will be the magnitude of average shear stress in a beam that a 200 mm wide and 250 mm deep if it is subjected to a maximum shear force of 75 kN.

A

1.50 N/mm$$^2$$

B

2.16 N/mm$$^2$$

C

2.25 N/mm$$^2$$

D

3.33 N/mm$$^2$$