Submerged soil classified as Type C can include which of the following?

Type C soil is defined within excavation safety standards as having a low cohesion and can include granular soils such as sand and gravel. This classification is important because it helps determine the necessary safety measures during excavation work. Granular soils typically have larger particles that do not stick together well, which can lead to instability when saturated or disturbed.

In the context of this question, while cohesive soils with strength greater than 0.5 tons per square foot may fall under a different classification and rock can often be stable but is not typically categorized with Type C soils, waterlogged soils would also not meet the definition of Type C due to their specific conditions affecting excavation safety. Hence, the characteristics of Type C soil align with granular soils, making it the correct choice.