‘What will be the magnitude of uniformly distributed load that a beam (30 cm wide and 20 cm deep). having a span 8 m, can carry such that the bending stress does not exceed 120 N/mm$$^2$$?

A

25.0 kN/m

B

28.5 kN/m

C

30.0 kN/m

D

32.5 kN/m