The most likely true statement is:
B.) the soil type of a region depends on the type of geologic processes that occur there and the rate at which they occur.
This is because soil formation is influenced by various factors, including geology, climate, vegetation, and time. Geologic processes affect the mineral composition of soils, and different rates of these processes can lead to variations in soil types across different regions. The other options are not accurate as they oversimplify the factors affecting soil type.