Consider the following statements:
I. The width-thickness ratio limitations on the plate elements under compression in steel members are imposed by IS: 800-1984 in order to avoid fabrication difficulties.
II. In a doubly reinforced concrete beam, the strain in compressive reinforcement is higher than the strain in the adjoining concrete.
III. If a cantilever I section supports slab construction all along its length with sufficient friction between them, the permissible bending stress in compression will be the same as that in tension.
The TRUE statements are