Which of the following mail items requires careful handling?

The choice indicating fragile items, such as glass or electronics, requires careful handling because these items are vulnerable to damage during transit. When handling mail, it is imperative to ensure that fragile items are protected against impacts, temperature changes, and vibrations. Glass can crack or break easily, while electronics often contain sensitive components that can be rendered inoperable if subjected to excessive force or mishandling. Proper packaging materials, cushioning, and labeling are vital to minimize the risk of damage, making this mail category stand out as needing additional attention and care in handling processes.