Which of the following is commonly used to pick up wet bedding in a stall?

The most effective tool for picking up wet bedding in a stall is a shovel. A shovel is designed with a broad, flat blade that allows for the collection and lifting of significant amounts of wet material, such as soaked bedding, with ease. It provides the leverage and strength needed to scoop up heavy, moist bedding, which can be quite dense and compact.

In comparison, while a rake and pitchfork can be useful for spreading or separating bedding material, they are not as adept at lifting wet bedding due to the thickness and weight involved. A broom is typically intended for sweeping and cleaning surfaces, making it unsuitable for the task of lifting wet bedding. Thus, a shovel stands out as the most appropriate choice for this particular job in stable maintenance.