Which type of heating will cause items in a room to be warm to the touch?

Radiant heating is the correct choice because it directly warms objects and surfaces in a room through infrared radiation. This method of heating does not primarily rely on heating the air; instead, it heats the physical items within its path, including furniture, floors, and walls. As these items absorb the infrared radiation, they become warm to the touch, which is a distinctive characteristic of radiant heating systems.

In contrast, convection heating works by warming the air in the room, which then circulates to warm up surfaces and objects. This process typically results in air that feels warmer rather than the items themselves being warm immediately, as they take longer to absorb that heat.

Forced air heating, similar to convection, relies on air being heated in a furnace and then circulated through ducts. While this can lead to a comfortable environment over time, the immediate sensation of warmth on surfaces is not as pronounced as with radiant heating.

Baseboard heating can also provide a warm environment and may feel warm to the touch, but it typically operates more like convection heating, where the heat rises from the unit and warms the air.

Thus, radiant heating is specifically designed to create a warm sensation on objects themselves, making it the most appropriate answer for the question posed.