Which door type utilizes a core made from a combination of wood and a honeycomb pattern?

The correct answer is Hollow-Core Doors. These doors feature a construction that incorporates a wood frame and a honeycomb cardboard or wood fiber core. This design provides a balance of strength and lightweight characteristics, making hollow-core doors a popular choice for interior applications where sound insulation and cost-effectiveness are considerations. The honeycomb pattern not only helps to reduce weight but also contributes to the door's stability and rigidity, preventing warping or bowing over time.

In contrast, sliding doors typically consist of large glass or framed panels, folding doors are designed to fold out of the way to save space and are usually made of solid materials, and glass doors primarily use glass for their construction, lacking the honeycomb core characteristic of hollow-core doors.