Which of the following applies to the construction of wooden stairs that are exposed to the weather?

The requirement for wooden stairs that are exposed to the weather to be sloped for drainage is essential to ensure durability and safety. When stairs are subject to rain, snow, or other forms of moisture, it is crucial that water does not pool on the stairs. By sloping the stairs appropriately, water can drain off easily, preventing the accumulation of water that could lead to slippery conditions or wood rot over time. This not only helps in maintaining the structural integrity of the stairs but also enhances user safety while navigating them.

The other options considered may not adequately address the fundamental concern of moisture management and safety. For example, while painting wooden stairs may provide a barrier against moisture, it is not as effective as ensuring proper drainage through sloping. Avoiding overhangs might be beneficial in some contexts, but it does not specifically address how water is managed. Similarly, using composite materials can be advantageous because they resist moisture better than wood, but these materials may not always be necessary if proper drainage techniques are employed.