Final answer:
In construction frameworks, vertical bars are to be fastened inside the horizontal bands of cages to provide structural integrity and strength.
Step-by-step explanation:
The question seems to be related to the construction or design aspects of structures that incorporate cages. When referring to horizontal bands of cages, this typically involves the creation of frameworks or reinforcements used in construction, such as in reinforced concrete. In this context, the correct answer appears to be that vertical bars must be on the inside of the horizontal bands of cages and be fastened to them. These vertical bars are essential for providing the structural integrity and strength needed in construction elements like columns, walls, or beams.