Final answer:
Limestone is the bedrock most commonly associated with Karst Topography due to its solubility in water.
Step-by-step explanation:
The type of bedrock most commonly associated with Karst Topography is limestone. Karst topography is characterized by soluble rocks that dissolve more easily in water compared to other types of rock. Features such as caves, sinkholes, and underground rivers are commonly formed in regions where limestone is the predominant bedrock. Other rock types like shale, sandstone, conglomerate, and quartzite can form unique geological units, but they don't typically result in karst landscapes. Limestone consists of marine skeleton fragments and is highly susceptible to erosion by water, a key factor in the development of karst features.