A body is found beneath an overpass in a metropolitan area. Soil found on the body is analyzed and compared to soil at the scene. The soil found beneath and around the body contains significant organic matter and minerals with rounded edges. The soil recovered from the skin of the body has little organic matter and a higher mineral content. During the physical analysis, both large and small granules and rock fragments are found in the soil found on the body. The physical analysis of the soil evidence most likely indicates that the
a. victim was recently in, or near, a river or fast-moving stream
b. mineral content of the soil on the body came from an ocean beach
c. the body was moved from a desert region to the place it was found
d. weathering patterns of the soils are consistent with a single source
