Final answer:
Anchors are the best choice for attaching objects to hollow masonry due to their design that allows them to expand within the material for a secure hold.
Step-by-step explanation:
When attaching objects to hollow masonry, anchors are useful. Unlike screws and nails which may not hold securely in the porous and sometimes brittle material of masonry, anchors are designed to expand within the hole drilled into the material, providing a secure hold. Adhesives can also be used, but their effectiveness can be variable based on the weight of the object and the conditions of the wall surface.